299 lines
14 KiB
JSON
299 lines
14 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-2026-48599",
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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": "2026-05-22T09:36:56.834Z",
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"datePublished": "2026-06-15T21:55:28.702Z",
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"dateUpdated": "2026-09-24T21:04:08.766Z"
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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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"collectionURL": "https://repo.hex.pm",
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"cpes": [
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"cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.GRPC.Server.Transcode'"
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],
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"packageName": "grpc",
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"packageURL": "pkg:hex/grpc",
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"product": "grpc",
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"programFiles": [
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"lib/grpc/server/transcode.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.GRPC.Server.Transcode':map_request/5"
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}
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],
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"repo": "https://github.com/elixir-grpc/grpc",
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"vendor": "elixir-grpc",
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"versions": [
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{
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"lessThan": "1.0.0",
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"status": "affected",
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"version": "0.8.0",
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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://github.com",
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"cpes": [
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"cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.GRPC.Server.Transcode'"
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],
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"packageName": "elixir-grpc/grpc",
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"packageURL": "pkg:github/elixir-grpc/grpc",
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"product": "grpc",
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"programFiles": [
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"lib/grpc/server/transcode.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.GRPC.Server.Transcode':map_request/5"
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}
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],
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"repo": "https://github.com/elixir-grpc/grpc",
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"vendor": "elixir-grpc",
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"versions": [
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{
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"lessThan": "33b6a095dbc91c6dee3c7b90893d7d74952e82e4",
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"status": "affected",
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"version": "8aaf3d3a8c4c7b08ac65e9c6f254e0d24da1d048",
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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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"configurations": [
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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>HTTP-to-gRPC transcoding must be enabled.</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": "HTTP-to-gRPC transcoding must be enabled."
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}
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],
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"value": "HTTP-to-gRPC transcoding must be enabled."
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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:elixir-grpc:grpc:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "1.0.0",
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"versionStartIncluding": "0.8.0",
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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": "Peter Ullrich"
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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": "Paulo Valente"
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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": "2026-06-15T21:55:28.000Z",
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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>Authorization Bypass Through User-Controlled Key vulnerability in elixir-grpc grpc allows authenticated attackers to access or modify resources belonging to other users by smuggling a conflicting value for any path-bound field via the query string or request body.</p>\n<p>In <code>'Elixir.GRPC.Server.Transcode':map_request/5</code> (<code>lib/grpc/server/transcode.ex</code>), all three clauses use <code>Map.merge/2</code> with path bindings as the first argument, giving them the lowest merge precedence. A request such as <code>GET /users/me/profile?user_id=victim</code> (or a POST with <code>{\"user_id\": \"victim\"}</code> when <code>body: \"*\"</code>) yields a decoded protobuf struct where the path-bound field carries the attacker-supplied value rather than the router-extracted value. Any handler that uses the path-bound field for authorization, multi-tenancy scoping, or ownership checks is silently bypassed.</p>\n<p>This issue affects grpc: from 0.8.0 before 1.0.0.</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": "Authorization Bypass Through User-Controlled Key vulnerability in elixir-grpc grpc allows authenticated attackers to access or modify resources belonging to other users by smuggling a conflicting value for any path-bound field via the query string or request body.\n\nIn `'Elixir.GRPC.Server.Transcode':map_request/5` (`lib/grpc/server/transcode.ex`), all three clauses use `Map.merge/2` with path bindings as the first argument, giving them the lowest merge precedence. A request such as `GET /users/me/profile?user_id=victim` (or a POST with `{\"user_id\": \"victim\"}` when `body: \"*\"`) yields a decoded protobuf struct where the path-bound field carries the attacker-supplied value rather than the router-extracted value. Any handler that uses the path-bound field for authorization, multi-tenancy scoping, or ownership checks is silently bypassed.\n\nThis issue affects grpc: from 0.8.0 before 1.0.0."
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}
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],
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"value": "Authorization Bypass Through User-Controlled Key vulnerability in elixir-grpc grpc allows authenticated attackers to access or modify resources belonging to other users by smuggling a conflicting value for any path-bound field via the query string or request body.\n\nIn 'Elixir.GRPC.Server.Transcode':map_request/5 (lib/grpc/server/transcode.ex), all three clauses use Map.merge/2 with path bindings as the first argument, giving them the lowest merge precedence. A request such as GET /users/me/profile?user_id=victim (or a POST with {\"user_id\": \"victim\"} when body: \"*\") yields a decoded protobuf struct where the path-bound field carries the attacker-supplied value rather than the router-extracted value. Any handler that uses the path-bound field for authorization, multi-tenancy scoping, or ownership checks is silently bypassed.\n\nThis issue affects grpc: from 0.8.0 before 1.0.0."
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-460",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-460 HTTP Parameter Pollution (HPP)"
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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": "PRESENT",
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"attackVector": "NETWORK",
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"baseScore": 7.6,
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"baseSeverity": "HIGH",
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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": "NONE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/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": "HIGH",
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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-639",
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"description": "CWE-639 Authorization Bypass Through User-Controlled Key",
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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": "2026-09-24T21:04:08.766Z"
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},
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"references": [
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{
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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/elixir-grpc/grpc/security/advisories/GHSA-mwr4-5g34-j5cq"
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},
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{
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"name": "EEF CNA record for CVE-2026-48599",
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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-2026-48599.html"
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},
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{
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"name": "OSV record EEF-CVE-2026-48599",
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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-2026-48599"
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},
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{
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"name": "Introducing commit 8aaf3d3 in elixir-grpc/grpc",
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"tags": [
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"related"
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],
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"url": "https://github.com/elixir-grpc/grpc/commit/8aaf3d3a8c4c7b08ac65e9c6f254e0d24da1d048"
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},
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{
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"name": "Fix commit 33b6a09 in elixir-grpc/grpc",
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"tags": [
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"patch"
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],
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"url": "https://github.com/elixir-grpc/grpc/commit/33b6a095dbc91c6dee3c7b90893d7d74952e82e4"
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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": "Authorization bypass via path binding override in elixir-grpc/grpc HTTP transcoding"
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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/elixir-grpc/grpc/security/advisories/GHSA-mwr4-5g34-j5cq",
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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": "2026-06-16T14:45:46.288762Z",
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"id": "CVE-2026-48599",
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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": "total"
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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": "2026-06-16T14:46:09.673Z"
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}
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}
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]
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}
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} |