EEF-CVE-2026-81636
- Source
- https://cna.erlef.org/osv/EEF-CVE-2026-81636.html
- Import Source
- https://cna.erlef.org/osv/EEF-CVE-2026-81636.json
- JSON Data
- https://api.osv.dev/v1/vulns/EEF-CVE-2026-81636
- Aliases
-
- CVE-2026-81636
- GHSA-mwc4-r9fc-h6mg
- Published
- 2026-08-30T18:25:29Z
- Modified
- 2026-09-08T20:30:03Z
- Severity
-
- 8.7 (High) CVSS_V4 - 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 CVSS Calculator
- Summary
- Query-complexity limit bypass via first/last pagination arguments in AshGraphql enables denial of service
- Details
-
Summary
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.
AshGraphql.Graphql.Resolver.query_complexity/3multiplies child complexity by the requested page size only when the argument map contains:limit(offset pagination). Relay connections and keyset pagination usefirstandlast, which never match that clause and fall through to the catch-all that returnschild_complexity + 1. A nested relay query such asposts(first: 500) { edges { node { comments(first: 500) { ... } } } }therefore scores as trivially cheap while materializing the full fan-out, passing an Absinthemax_complexitycap that rejects the equivalentlimit-based query. The fix addsfirstandlastclauses clamped to the action's page size.This issue affects ash_graphql: from 0.16.23 before 1.11.0.
- Database specific
{ "capec_ids": [ "CAPEC-130" ], "cpe_ids": [ "cpe:2.3:a:ash-project:ash_graphql:*:*:*:*:*:*:*:*" ], "cwe_ids": [ "CWE-770" ] }- References
- Credits
-
-
- Peter Ullrich - FINDER
-
- Peter Ullrich - REPORTER
-
- Zach Daniel / Ash Project - REMEDIATION_DEVELOPER
-
- Jonatan Männchen / EEF - COORDINATOR
-
Affected packages
Hex / ash_graphql
Package
- Name
- ash_graphql
- Purl
- pkg:hex/ash_graphql