303 lines
15 KiB
JSON
303 lines
15 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-2026-77856",
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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": "2026-08-30T17:30:01.406Z",
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"datePublished": "2026-09-01T02:08:46.189Z",
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"dateUpdated": "2026-09-01T14:49:22.592Z"
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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:ash-project:ash_typescript:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.AshTypescript.Rpc.FieldProcessing.FieldSelector'",
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"'Elixir.AshTypescript.Rpc'"
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],
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"packageName": "ash_typescript",
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"packageURL": "pkg:hex/ash_typescript",
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"product": "ash_typescript",
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"programFiles": [
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"lib/ash_typescript/rpc/field_processing/field_selector.ex",
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"lib/ash_typescript/rpc.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.AshTypescript.Rpc.FieldProcessing.FieldSelector':resolve_typed_struct_field/2"
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},
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{
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"name": "'Elixir.AshTypescript.Rpc':run_action/3"
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}
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],
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"repo": "https://github.com/ash-project/ash_typescript",
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"vendor": "ash-project",
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"versions": [
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{
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"lessThan": "0.18.0",
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"status": "affected",
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"version": "0.11.0",
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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:ash-project:ash_typescript:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.AshTypescript.Rpc.FieldProcessing.FieldSelector'",
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"'Elixir.AshTypescript.Rpc'"
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],
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"packageName": "ash-project/ash_typescript",
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"packageURL": "pkg:github/ash-project/ash_typescript",
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"product": "ash_typescript",
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"programFiles": [
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"lib/ash_typescript/rpc/field_processing/field_selector.ex",
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"lib/ash_typescript/rpc.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.AshTypescript.Rpc.FieldProcessing.FieldSelector':resolve_typed_struct_field/2"
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},
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{
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"name": "'Elixir.AshTypescript.Rpc':run_action/3"
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}
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],
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"repo": "https://github.com/ash-project/ash_typescript",
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"vendor": "ash-project",
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"versions": [
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{
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"lessThan": "0ab5c83a7df28d51a6de1fb9b859a142b2b12919",
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"status": "affected",
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"version": "7c3d30896f2f9a54edea17e3787549776b1b288d",
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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>The application exposes an AshTypescript RPC endpoint over HTTP and has at least one resource field backed by an <code>Ash.TypedStruct</code>, so that client-supplied names reach <code>resolve_typed_struct_field/2</code>.</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": "The application exposes an AshTypescript RPC endpoint over HTTP and has at least one resource field backed by an `Ash.TypedStruct`, so that client-supplied names reach `resolve_typed_struct_field/2`."
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}
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],
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"value": "The application exposes an AshTypescript RPC endpoint over HTTP and has at least one resource field backed by an Ash.TypedStruct, so that client-supplied names reach resolve_typed_struct_field/2."
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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:ash-project:ash_typescript:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "0.18.0",
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"versionStartIncluding": "0.11.0",
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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": "reporter",
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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": "Torkild Gundersen Kjevik / Ash Project"
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},
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{
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"lang": "en",
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"type": "coordinator",
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"value": "Jonatan Männchen / EEF"
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}
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],
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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>Allocation of Resources Without Limits or Throttling vulnerability in ash-project ash_typescript allows an unauthenticated attacker to exhaust the BEAM atom table and abort the node via client-supplied typed struct field names.</p>\n<p><code>resolve_typed_struct_field/2</code> in <code>lib/ash_typescript/rpc/field_processing/field_selector.ex</code> looks a client-supplied field name up in the typed struct's reverse map and, when it finds no match, falls back to <code>String.to_atom/1</code>. Because this runs before any field-existence check, an unresolvable name mints a permanent atom rather than being rejected as unknown. Atoms are never garbage collected, so a request carrying many distinct names on a typed struct field grows the atom table until the VM aborts at its limit.</p>\n<p>This issue affects ash_typescript: from 0.11.0 before 0.18.0.</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": "Allocation of Resources Without Limits or Throttling vulnerability in ash-project ash_typescript allows an unauthenticated attacker to exhaust the BEAM atom table and abort the node via client-supplied typed struct field names.\n\n`resolve_typed_struct_field/2` in `lib/ash_typescript/rpc/field_processing/field_selector.ex` looks a client-supplied field name up in the typed struct's reverse map and, when it finds no match, falls back to `String.to_atom/1`. Because this runs before any field-existence check, an unresolvable name mints a permanent atom rather than being rejected as unknown. Atoms are never garbage collected, so a request carrying many distinct names on a typed struct field grows the atom table until the VM aborts at its limit.\n\nThis issue affects ash_typescript: from 0.11.0 before 0.18.0."
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}
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],
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"value": "Allocation of Resources Without Limits or Throttling vulnerability in ash-project ash_typescript allows an unauthenticated attacker to exhaust the BEAM atom table and abort the node via client-supplied typed struct field names.\n\nresolve_typed_struct_field/2 in lib/ash_typescript/rpc/field_processing/field_selector.ex looks a client-supplied field name up in the typed struct's reverse map and, when it finds no match, falls back to String.to_atom/1. Because this runs before any field-existence check, an unresolvable name mints a permanent atom rather than being rejected as unknown. Atoms are never garbage collected, so a request carrying many distinct names on a typed struct field grows the atom table until the VM aborts at its limit.\n\nThis issue affects ash_typescript: from 0.11.0 before 0.18.0."
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-130",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-130 Excessive Allocation"
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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": 8.2,
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"baseSeverity": "HIGH",
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"privilegesRequired": "NONE",
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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:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
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"version": "4.0",
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"vulnAvailabilityImpact": "HIGH",
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"vulnConfidentialityImpact": "NONE",
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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-770",
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"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
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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": "2026-09-01T02:08:46.189Z"
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},
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"references": [
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{
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"tags": [
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"related",
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"vendor-advisory"
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],
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"url": "https://github.com/ash-project/ash_typescript/security/advisories/GHSA-rj47-h936-4cxw"
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},
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{
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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-2026-77856.html"
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},
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{
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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-2026-77856"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/ash-project/ash_typescript/commit/0ab5c83a7df28d51a6de1fb9b859a142b2b12919"
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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": "Unbounded atom creation from typed struct field names in AshTypescript field selector"
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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/ash-project/ash_typescript/security/advisories/GHSA-rj47-h936-4cxw",
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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": "2026-09-01T14:49:00.470737Z",
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"id": "CVE-2026-77856",
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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": "2026-09-01T14:49:22.592Z"
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}
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}
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]
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}
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} |