CVE-2026-61709: OpenFGA: ListUsers returns a deliberately-excluded user when a `but not` exclusion under a type-bound wildcard is intersected (`and`) with another relation that also grants that user

September 16, 2026

In OpenFGA, the ListUsers API could incorrectly return a user who should have been excluded.

References

github.com/advisories/GHSA-g3pg-frfm-pr2m
github.com/openfga/openfga/commit/171806c93b86bca29e0212ceb8b6ee9c48eb9ac3
github.com/openfga/openfga/releases/tag/v1.18.1
github.com/openfga/openfga/security/advisories/GHSA-g3pg-frfm-pr2m
nvd.nist.gov/vuln/detail/CVE-2026-61709

Code Behaviors & Features

Detect and mitigate CVE-2026-61709 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →