CyberRota Analysis
AI-GeneratedThe vulnerability allows authenticated subscribers in one tenant to access another tenant's records through GraphQL subscriptions due to improper authorization checks in the AshGraphql subscription resolver. This can lead to unauthorized data exposure, compromising tenant isolation and potentially sensitive information. Organizations using affected versions of ash_graphql (1.4.0 to 1.11.0) should prioritize patching this vulnerability to protect against data leakage and maintain compliance with data protection regulations.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Incorrect Authorization vulnerability in ash-project ash_graphql allows an authenticated subscriber in one tenant to receive another tenant's records over GraphQL subscriptions. The subscription resolver in AshGraphql.Graphql.Resolver authorizes each notification payload in memory: its fast path calls Ash.can/3 with run_queries?: false, which evaluates the read policy filter against the in-memory record via Ash.Expr.eval/2 and never issues a query. Ash applies multitenancy at query-build and data-layer-prefix time, not inside query.filter, so the evaluated policy carries no tenant condition and a tenant-B notification routed to a tenant-A subscriber is emitted whenever the policy filter is true. The single-notification clause has no tenant guard at all, and the batched clause checks only the head of the notification list, so non-head entries authorize purely in memory. A tenant-scoped read is reached only when filter evaluation fails. This issue affects ash_graphql: from 1.4.0 before 1.11.0.