CVE-2026-81633 - Unhandled KeyError in AshGraphql relay node resolution crashes queries via an unknown type segment

CVE-2026-81633 - Unhandled KeyError in AshGraphql relay node resolution crashes queries via an unknown type segment

https://cvefeed.io/rssfeed/latest.atom / Mon, 08/31/2026 - 01:29
CVE ID :CVE-2026-81633
Published : Aug. 30, 2026, 7:17 p.m. | 3 hours, 13 minutes ago
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. 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. This issue affects ash_graphql: from 0.27.0 before 1.11.0.
Severity: 6.9 | MEDIUM
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