{"api_version":"1","generated_at":"2026-08-31T01:03:33+00:00","cve":"CVE-2026-81633","urls":{"html":"https://cve.report/CVE-2026-81633","api":"https://cve.report/api/cve/CVE-2026-81633.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-81633","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-81633"},"summary":{"title":"Unhandled KeyError in AshGraphql relay node resolution crashes queries via an unknown type segment","description":"Improper Input Validation vulnerability in ash-project ash_graphql allows an unauthenticated client to crash a relay node(id: ...) query with an unhandled KeyError.\n\nAshGraphql.Graphql.Resolver.resolve_node/2 decodes the client-supplied global ID with decode_relay_id/1, which only base64-decodes the string and splits it on : without validating the type segment. The decoded type is passed straight to Map.fetch!(type_to_domain_and_resource_map, type). Because fetch! raises on a missing key, a relay ID whose type segment is a valid atom that is not a relay-exposed type aborts the resolver before its resolve/2 clauses and their rescue handlers run, so the error never becomes a GraphQL error and may expose a stacktrace. Common resource names are easy to guess. The fix uses Map.fetch/2 and returns an Invalid node id error for unknown types.\n\nThis issue affects ash_graphql: from 0.27.0 before 1.11.0.","state":"PUBLISHED","assigner":"EEF","published_at":"2026-08-30 19:17:29","updated_at":"2026-08-30 19:17:29"},"problem_types":["CWE-20","CWE-20 CWE-20 Improper Input 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Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-81633","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"ash-project","product":"ash_graphql","version":"affected 0.27.0 1.11.0 semver","platforms":[]},{"source":"CNA","vendor":"ash-project","product":"ash_graphql","version":"affected 365b3aedc6b36f020e6a2c7dce63fa569243bc4e c8863ed8e5c21f1bfb6125f1d24e78443dfc6351 git","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Peter Ullrich","lang":"en"},{"source":"CNA","value":"Peter Ullrich","lang":"en"},{"source":"CNA","value":"Zach Daniel / Ash Project","lang":"en"},{"source":"CNA","value":"Jonatan Männchen / EEF","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.AshGraphql.Graphql.Resolver'"],"packageName":"ash_graphql","packageURL":"pkg:hex/ash_graphql","product":"ash_graphql","programFiles":["lib/graphql/resolver.ex"],"programRoutines":[{"name":"'Elixir.AshGraphql.Graphql.Resolver':resolve_node/2"}],"repo":"https://github.com/ash-project/ash_graphql","vendor":"ash-project","versions":[{"lessThan":"1.11.0","status":"affected","version":"0.27.0","versionType":"semver"}]},{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.AshGraphql.Graphql.Resolver'"],"packageName":"ash-project/ash_graphql","packageURL":"pkg:github/ash-project/ash_graphql","product":"ash_graphql","programFiles":["lib/graphql/resolver.ex"],"programRoutines":[{"name":"'Elixir.AshGraphql.Graphql.Resolver':resolve_node/2"}],"repo":"https://github.com/ash-project/ash_graphql","vendor":"ash-project","versions":[{"lessThan":"c8863ed8e5c21f1bfb6125f1d24e78443dfc6351","status":"affected","version":"365b3aedc6b36f020e6a2c7dce63fa569243bc4e","versionType":"git"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*","versionEndExcluding":"1.11.0","versionStartIncluding":"0.27.0","vulnerable":true}],"negate":false,"operator":"OR"}],"operator":"AND"}],"credits":[{"lang":"en","type":"finder","value":"Peter Ullrich"},{"lang":"en","type":"reporter","value":"Peter Ullrich"},{"lang":"en","type":"remediation developer","value":"Zach Daniel / Ash Project"},{"lang":"en","type":"coordinator","value":"Jonatan Männchen / EEF"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Improper Input Validation vulnerability in ash-project ash_graphql allows an unauthenticated client to crash a relay <code>node(id: ...)</code> query with an unhandled <code>KeyError</code>.</p>\n<p><code>AshGraphql.Graphql.Resolver.resolve_node/2</code> decodes the client-supplied global ID with <code>decode_relay_id/1</code>, which only base64-decodes the string and splits it on <code>:</code> without validating the type segment. The decoded type is passed straight to <code>Map.fetch!(type_to_domain_and_resource_map, type)</code>. Because <code>fetch!</code> raises on a missing key, a relay ID whose type segment is a valid atom that is not a relay-exposed type aborts the resolver before its <code>resolve/2</code> clauses and their <code>rescue</code> handlers run, so the error never becomes a GraphQL error and may expose a stacktrace. Common resource names are easy to guess. The fix uses <code>Map.fetch/2</code> and returns an <code>Invalid node id</code> error for unknown types.</p>\n<p>This issue affects ash_graphql: from 0.27.0 before 1.11.0.</p>"},{"base64":false,"type":"text/markdown","value":"Improper Input Validation vulnerability in ash-project ash_graphql allows an unauthenticated client to crash a relay `node(id: ...)` query with an unhandled `KeyError`.\n\n`AshGraphql.Graphql.Resolver.resolve_node/2` decodes the client-supplied global ID with `decode_relay_id/1`, which only base64-decodes the string and splits it on `:` without validating the type segment. The decoded type is passed straight to `Map.fetch!(type_to_domain_and_resource_map, type)`. Because `fetch!` raises on a missing key, a relay ID whose type segment is a valid atom that is not a relay-exposed type aborts the resolver before its `resolve/2` clauses and their `rescue` handlers run, so the error never becomes a GraphQL error and may expose a stacktrace. Common resource names are easy to guess. The fix uses `Map.fetch/2` and returns an `Invalid node id` error for unknown types.\n\nThis issue affects ash_graphql: from 0.27.0 before 1.11.0."}],"value":"Improper Input Validation vulnerability in ash-project ash_graphql allows an unauthenticated client to crash a relay node(id: ...) query with an unhandled KeyError.\n\nAshGraphql.Graphql.Resolver.resolve_node/2 decodes the client-supplied global ID with decode_relay_id/1, which only base64-decodes the string and splits it on : without validating the type segment. The decoded type is passed straight to Map.fetch!(type_to_domain_and_resource_map, type). Because fetch! raises on a missing key, a relay ID whose type segment is a valid atom that is not a relay-exposed type aborts the resolver before its resolve/2 clauses and their rescue handlers run, so the error never becomes a GraphQL error and may expose a stacktrace. Common resource names are easy to guess. The fix uses Map.fetch/2 and returns an Invalid node id error for unknown types.\n\nThis issue affects ash_graphql: from 0.27.0 before 1.11.0."}],"impacts":[{"capecId":"CAPEC-153","descriptions":[{"lang":"en","value":"CAPEC-153 Input Data Manipulation"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-08-30T18:22:07.096Z","orgId":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db","shortName":"EEF"},"references":[{"tags":["vendor-advisory","related"],"url":"https://github.com/ash-project/ash_graphql/security/advisories/GHSA-mrgv-g7gf-r96h"},{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-81633.html"},{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-81633"},{"tags":["patch"],"url":"https://github.com/ash-project/ash_graphql/commit/c8863ed8e5c21f1bfb6125f1d24e78443dfc6351"}],"source":{"discovery":"EXTERNAL"},"title":"Unhandled KeyError in AshGraphql relay node resolution crashes queries via an unknown type segment"}},"cveMetadata":{"assignerOrgId":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db","assignerShortName":"EEF","cveId":"CVE-2026-81633","datePublished":"2026-08-30T18:22:07.096Z","dateReserved":"2026-08-30T17:15:01.281Z","dateUpdated":"2026-08-30T18:22:07.096Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-30 19:17:29","lastModifiedDate":"2026-08-30 19:17:29","problem_types":["CWE-20","CWE-20 CWE-20 Improper Input Validation"],"metrics":{"cvssMetricV40":[{"source":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":6.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"81633","Ordinal":"1","Title":"Unhandled KeyError in AshGraphql relay node resolution crashes q","CVE":"CVE-2026-81633","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"81633","Ordinal":"1","NoteData":"Improper Input Validation vulnerability in ash-project ash_graphql allows an unauthenticated client to crash a relay node(id: ...) query with an unhandled KeyError.\n\nAshGraphql.Graphql.Resolver.resolve_node/2 decodes the client-supplied global ID with decode_relay_id/1, which only base64-decodes the string and splits it on : without validating the type segment. The decoded type is passed straight to Map.fetch!(type_to_domain_and_resource_map, type). Because fetch! raises on a missing key, a relay ID whose type segment is a valid atom that is not a relay-exposed type aborts the resolver before its resolve/2 clauses and their rescue handlers run, so the error never becomes a GraphQL error and may expose a stacktrace. Common resource names are easy to guess. The fix uses Map.fetch/2 and returns an Invalid node id error for unknown types.\n\nThis issue affects ash_graphql: from 0.27.0 before 1.11.0.","Type":"Description","Title":"Unhandled KeyError in AshGraphql relay node resolution crashes q"}]}}}