{"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':query_complexity/3"}],"repo":"https://github.com/ash-project/ash_graphql","vendor":"ash-project","versions":[{"lessThan":"1.11.0","status":"affected","version":"0.16.23","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':query_complexity/3"}],"repo":"https://github.com/ash-project/ash_graphql","vendor":"ash-project","versions":[{"lessThan":"c3229f6a65cbabb32fd7ffcac881922d1b3b30ad","status":"affected","version":"d8a3e1b15587180ad9cb3ceeb398863d086c163b","versionType":"git"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*","versionEndExcluding":"1.11.0","versionStartIncluding":"0.16.23","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>Allocation of Resources Without Limits or Throttling vulnerability in ash-project ash_graphql allows an unauthenticated client to bypass the configured GraphQL query-complexity limit and force an unbounded database read.</p>\n<p><code>AshGraphql.Graphql.Resolver.query_complexity/3</code> multiplies child complexity by the requested page size only when the argument map contains <code>:limit</code> (offset pagination). Relay connections and keyset pagination use <code>first</code> and <code>last</code>, which never match that clause and fall through to the catch-all that returns <code>child_complexity + 1</code>. A nested relay query such as <code>posts(first: 500) { edges { node { comments(first: 500) { ... } } } }</code> therefore scores as trivially cheap while materializing the full fan-out, passing an Absinthe <code>max_complexity</code> cap that rejects the equivalent <code>limit</code>-based query. The fix adds <code>first</code> and <code>last</code> clauses clamped to the action's page size.</p>\n<p>This issue affects ash_graphql: from 0.16.23 before 1.11.0.</p>"},{"base64":false,"type":"text/markdown","value":"Allocation of Resources Without Limits or Throttling vulnerability in ash-project ash_graphql allows an unauthenticated client to bypass the configured GraphQL query-complexity limit and force an unbounded database read.\n\n`AshGraphql.Graphql.Resolver.query_complexity/3` multiplies child complexity by the requested page size only when the argument map contains `:limit` (offset pagination). Relay connections and keyset pagination use `first` and `last`, which never match that clause and fall through to the catch-all that returns `child_complexity + 1`. A nested relay query such as `posts(first: 500) { edges { node { comments(first: 500) { ... } } } }` therefore scores as trivially cheap while materializing the full fan-out, passing an Absinthe `max_complexity` cap that rejects the equivalent `limit`-based query. The fix adds `first` and `last` clauses clamped to the action's page size.\n\nThis issue affects ash_graphql: from 0.16.23 before 1.11.0."}],"value":"Allocation of Resources Without Limits or Throttling vulnerability in ash-project ash_graphql allows an unauthenticated client to bypass the configured GraphQL query-complexity limit and force an unbounded database read.\n\nAshGraphql.Graphql.Resolver.query_complexity/3 multiplies child complexity by the requested page size only when the argument map contains :limit (offset pagination). Relay connections and keyset pagination use first and last, which never match that clause and fall through to the catch-all that returns child_complexity + 1. A nested relay query such as posts(first: 500) { edges { node { comments(first: 500) { ... } } } } therefore scores as trivially cheap while materializing the full fan-out, passing an Absinthe max_complexity cap that rejects the equivalent limit-based query. The fix adds first and last clauses clamped to the action's page size.\n\nThis issue affects ash_graphql: from 0.16.23 before 1.11.0."}],"impacts":[{"capecId":"CAPEC-130","descriptions":[{"lang":"en","value":"CAPEC-130 Excessive Allocation"}]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","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:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","description":"CWE-770 Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-08-30T18:25:29.776Z","orgId":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db","shortName":"EEF"},"references":[{"tags":["vendor-advisory","related"],"url":"https://github.com/ash-project/ash_graphql/security/advisories/GHSA-mwc4-r9fc-h6mg"},{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-81636.html"},{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-81636"},{"tags":["patch"],"url":"https://github.com/ash-project/ash_graphql/commit/c3229f6a65cbabb32fd7ffcac881922d1b3b30ad"}],"source":{"discovery":"EXTERNAL"},"title":"Query-complexity limit bypass via first/last pagination arguments in AshGraphql enables denial of service"}},"cveMetadata":{"assignerOrgId":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db","assignerShortName":"EEF","cveId":"CVE-2026-81636","datePublished":"2026-08-30T18:25:29.776Z","dateReserved":"2026-08-30T02:00:02.143Z","dateUpdated":"2026-08-30T18:25:29.776Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"}