Improper Access Control in auth0-ai-js Document Retrieval CVE-2026-107372 - Nov 10, 2026

Description

The auth0-ai-js FGA retriever does not distinguish between authorization checks under different conditions when filtering documents during retrieval-augmented generation, resulting in documents denied by Auth0 FGA being included in the model context and used in the generated response.

Preconditions

1. The retriever is configured with Auth0 FGA conditional checks, and

2. A single retrieval includes multiple documents that share the same object, user, and relation but differ by authorization context.

Affected product and versions

Customers using @auth0/ai versions prior to 6.0.2 are affected.

Customer Recommendations

To remediate this vulnerability, upgrade @auth0/ai to version 6.0.3 or greater.

Resolution

The vulnerability is present in @auth0/ai versions prior to version 6.0.2 and is resolved in @auth0/ai version 6.0.3.

CVE details

References

Improper Access Control in auth0-ai-js Document Retrieval