426 lines
21 KiB
JSON
426 lines
21 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-42795",
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"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"state": "PUBLISHED",
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"assignerShortName": "EEF",
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"dateReserved": "2026-04-29T18:06:33.251Z",
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"datePublished": "2026-06-02T13:41:39.527Z",
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"dateUpdated": "2026-11-10T19:18:49.163Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"cpes": [
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"cpe:2.3:a:gleam-lang:gleam:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"compiler-cli"
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],
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"packageName": "gleam",
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"packageURL": "pkg:software-id/gleam.run/gleam",
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"product": "Gleam",
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"programFiles": [
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"compiler-cli/src/fs.rs",
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"compiler-cli/src/publish.rs"
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],
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"programRoutines": [
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{
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"name": "compiler_cli::fs::gleam_files"
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},
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{
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"name": "compiler_cli::fs::native_files"
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},
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{
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"name": "compiler_cli::fs::private_files"
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},
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{
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"name": "compiler_cli::publish::project_files"
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},
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{
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"name": "compiler_cli::publish::add_path_to_tar"
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}
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],
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"vendor": "Gleam",
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"versions": [
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{
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"lessThan": "1.17.0",
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"status": "affected",
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"version": "0.10.0-rc1",
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"versionType": "semver"
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}
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]
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},
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{
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"collectionURL": "https://ghcr.io",
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"cpes": [
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"cpe:2.3:a:gleam-lang:gleam:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"compiler-cli"
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],
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"packageName": "gleam-lang/gleam",
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"packageURL": "pkg:oci/gleam?repository_url=ghcr.io%2Fgleam-lang%2Fgleam",
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"product": "Gleam",
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"programFiles": [
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"compiler-cli/src/fs.rs",
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"compiler-cli/src/publish.rs"
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],
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"programRoutines": [
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{
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"name": "compiler_cli::fs::gleam_files"
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},
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{
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"name": "compiler_cli::fs::native_files"
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},
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{
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"name": "compiler_cli::fs::private_files"
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},
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{
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"name": "compiler_cli::publish::project_files"
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},
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{
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"name": "compiler_cli::publish::add_path_to_tar"
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}
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],
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"vendor": "Gleam",
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"versions": [
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{
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"lessThan": "v1.17.0-elixir",
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"status": "affected",
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"version": "v0.10.0-rc1-elixir",
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"versionType": "other"
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},
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{
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"lessThan": "v1.17.0-erlang",
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"status": "affected",
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"version": "v0.10.0-rc1-erlang",
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"versionType": "other"
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},
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{
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"lessThan": "v1.17.0-node",
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"status": "affected",
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"version": "v0.10.0-rc1-node",
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"versionType": "other"
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},
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{
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"lessThan": "v1.17.0-node-slim",
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"status": "affected",
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"version": "v0.10.0-rc1-node-slim",
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"versionType": "other"
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},
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{
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"lessThan": "v1.17.0-elixir-slim",
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"status": "affected",
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"version": "v0.10.0-rc1-elixir-slim",
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"versionType": "other"
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},
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{
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"lessThan": "v1.17.0-erlang-slim",
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"status": "affected",
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"version": "v0.10.0-rc1-erlang-slim",
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"versionType": "other"
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},
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{
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"lessThan": "v1.17.0-erlang-alpine",
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"status": "affected",
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"version": "v0.10.0-rc1-erlang-alpine",
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"versionType": "other"
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},
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{
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"lessThan": "v1.17.0-elixir-alpine",
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"status": "affected",
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"version": "v0.10.0-rc1-elixir-alpine",
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"versionType": "other"
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},
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{
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"lessThan": "v1.17.0-node-alpine",
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"status": "affected",
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"version": "v0.10.0-rc1-node-alpine",
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"versionType": "other"
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},
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{
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"lessThan": "v1.17.0-scratch",
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"status": "affected",
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"version": "v0.10.0-rc1-scratch",
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"versionType": "other"
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}
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]
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},
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{
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"collectionURL": "https://github.com",
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"cpes": [
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"cpe:2.3:a:gleam-lang:gleam:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"compiler-cli"
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],
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"packageName": "gleam-lang/gleam",
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"packageURL": "pkg:github/gleam-lang/gleam",
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"product": "Gleam",
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"programFiles": [
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"compiler-cli/src/fs.rs",
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"compiler-cli/src/publish.rs"
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],
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"programRoutines": [
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{
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"name": "compiler_cli::fs::gleam_files"
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},
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{
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"name": "compiler_cli::fs::native_files"
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},
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{
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"name": "compiler_cli::fs::private_files"
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},
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{
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"name": "compiler_cli::publish::project_files"
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},
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{
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"name": "compiler_cli::publish::add_path_to_tar"
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}
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],
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"repo": "https://github.com/gleam-lang/gleam",
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"vendor": "Gleam",
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"versions": [
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{
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"lessThan": "6435a5528b9ae0449e2f32be579641ec485f6866",
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"status": "affected",
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"version": "c82a2d83bd0c06cafdc196820deb3f89a9b3ff7c",
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"versionType": "git"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"cpeMatch": [
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{
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"criteria": "cpe:2.3:a:gleam-lang:gleam:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "1.17.0",
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"versionStartIncluding": "0.10.0-rc1",
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"vulnerable": true
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}
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],
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"negate": false,
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"operator": "OR"
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}
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],
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"operator": "AND"
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"value": "Aly (spect3r1)"
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},
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{
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"lang": "en",
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"type": "finder",
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"value": "Abdelrahman Ahmed Aboelkasem (0x2face)"
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},
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{
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"lang": "en",
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"type": "remediation developer",
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"value": "Louis Pilfold"
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},
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{
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"lang": "en",
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"type": "analyst",
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"value": "Jonatan Männchen / EEF"
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}
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],
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"datePublic": "2026-06-02T13:41:39.000Z",
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "<p>Symlink following vulnerability in Gleam's Hex package export allows files outside the project root to be embedded in the generated package tarball.</p>\n<p>The file collection helpers (<code>gleam_files</code>, <code>native_files</code>, <code>private_files</code>) in <code>compiler-cli/src/fs.rs</code> use <code>follow_links(true)</code> when walking publishable directories such as <code>src/</code> and <code>priv/</code>. The collected paths are added to the package archive via <code>add_path_to_tar</code> in <code>compiler-cli/src/publish.rs</code> without verifying that the resolved target remains within the project root. A symlink placed under a publishable directory will cause <code>gleam export hex-tarball</code> or <code>gleam publish</code> to embed the contents of the symlink target into the generated Hex package.</p>\n<p>An attacker with write access to the project repository can place a symlink in <code>src/</code> or <code>priv/</code> pointing to an arbitrary file. When a maintainer or CI pipeline runs <code>gleam publish</code> or <code>gleam export hex-tarball</code>, local files readable by the publisher (such as secrets, tokens, or SSH keys) are silently embedded into the published package artifact.</p>\n<p>This issue affects gleam: from 0.10.0-rc1 before 1.17.0.</p>"
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},
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{
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"base64": false,
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"type": "text/markdown",
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"value": "Symlink following vulnerability in Gleam's Hex package export allows files outside the project root to be embedded in the generated package tarball.\n\nThe file collection helpers (`gleam_files`, `native_files`, `private_files`) in `compiler-cli/src/fs.rs` use `follow_links(true)` when walking publishable directories such as `src/` and `priv/`. The collected paths are added to the package archive via `add_path_to_tar` in `compiler-cli/src/publish.rs` without verifying that the resolved target remains within the project root. A symlink placed under a publishable directory will cause `gleam export hex-tarball` or `gleam publish` to embed the contents of the symlink target into the generated Hex package.\n\nAn attacker with write access to the project repository can place a symlink in `src/` or `priv/` pointing to an arbitrary file. When a maintainer or CI pipeline runs `gleam publish` or `gleam export hex-tarball`, local files readable by the publisher (such as secrets, tokens, or SSH keys) are silently embedded into the published package artifact.\n\nThis issue affects gleam: from 0.10.0-rc1 before 1.17.0."
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}
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],
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"value": "Symlink following vulnerability in Gleam's Hex package export allows files outside the project root to be embedded in the generated package tarball.\n\nThe file collection helpers (gleam_files, native_files, private_files) in compiler-cli/src/fs.rs use follow_links(true) when walking publishable directories such as src/ and priv/. The collected paths are added to the package archive via add_path_to_tar in compiler-cli/src/publish.rs without verifying that the resolved target remains within the project root. A symlink placed under a publishable directory will cause gleam export hex-tarball or gleam publish to embed the contents of the symlink target into the generated Hex package.\n\nAn attacker with write access to the project repository can place a symlink in src/ or priv/ pointing to an arbitrary file. When a maintainer or CI pipeline runs gleam publish or gleam export hex-tarball, local files readable by the publisher (such as secrets, tokens, or SSH keys) are silently embedded into the published package artifact.\n\nThis issue affects gleam: from 0.10.0-rc1 before 1.17.0."
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-132",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-132 Symlink Attack"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "LOCAL",
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"baseScore": 5.1,
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"baseSeverity": "MEDIUM",
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"privilegesRequired": "LOW",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "ACTIVE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N",
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"version": "4.0",
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"vulnAvailabilityImpact": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "NONE",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-59",
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"description": "CWE-59 Improper Link Resolution Before File Access",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"shortName": "EEF",
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"dateUpdated": "2026-11-10T19:18:49.163Z"
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},
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"references": [
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{
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"name": "Symlink dereference during Hex package export can leak files outside the project root",
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"tags": [
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"vendor-advisory",
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"related"
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],
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"url": "https://github.com/gleam-lang/gleam/security/advisories/GHSA-qhh5-fg4c-8gqc"
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},
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{
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"name": "EEF CNA record for CVE-2026-42795",
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"tags": [
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"related"
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],
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"url": "https://cna.erlef.org/cves/CVE-2026-42795.html"
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},
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{
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"name": "OSV record EEF-CVE-2026-42795",
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"tags": [
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"related"
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],
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"url": "https://osv.dev/vulnerability/EEF-CVE-2026-42795"
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},
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{
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"name": "Introducing commit c82a2d8 in gleam-lang/gleam",
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"tags": [
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"related"
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],
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"url": "https://github.com/gleam-lang/gleam/commit/c82a2d83bd0c06cafdc196820deb3f89a9b3ff7c"
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},
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{
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"name": "Fix commit 6435a55 in gleam-lang/gleam",
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"tags": [
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"patch"
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],
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"url": "https://github.com/gleam-lang/gleam/commit/6435a5528b9ae0449e2f32be579641ec485f6866"
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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},
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"title": "Symlink Following in Hex Package Export Allows Embedding Files Outside Project Root",
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"workarounds": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "<ul>\n<li>Avoid running <code>gleam publish</code> or <code>gleam export hex-tarball</code> on untrusted projects</li>\n<li>Review the contents of <code>src/</code> and <code>priv/</code> for unexpected symlinks before publishing</li>\n<li>Run publishing commands in a restricted or isolated environment (e.g. containers)</li>\n</ul>"
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},
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{
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"base64": false,
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"type": "text/markdown",
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"value": "* Avoid running `gleam publish` or `gleam export hex-tarball` on untrusted projects\n* Review the contents of `src/` and `priv/` for unexpected symlinks before publishing\n* Run publishing commands in a restricted or isolated environment (e.g. containers)"
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}
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],
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"value": "* Avoid running gleam publish or gleam export hex-tarball on untrusted projects\n* Review the contents of src/ and priv/ for unexpected symlinks before publishing\n* Run publishing commands in a restricted or isolated environment (e.g. containers)"
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}
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]
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/gleam-lang/gleam/security/advisories/GHSA-qhh5-fg4c-8gqc",
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|
"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-06-02T15:04:06.195456Z",
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"id": "CVE-2026-42795",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-06-02T15:04:35.767Z"
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}
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}
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]
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}
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} |