Auth bypass in Openfga
CVE-2026-55689
OpenFGA is an authorization/permission engine built for developers. Prior to 1.18.0, OpenFGA's OIDC authenticator skipped JWT audience validation when authn.method was set to oidc, authn.oidc.issuer was configured, and authn.oidc.audience…
Vulnerability class: Broken Authentication
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Openfga — versions < 1.18.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-55689?
- CVE-2026-55689 is a medium-severity vulnerability in Openfga, classified under Improper Authentication. CVSS score: 6.8/10. Published 2026-07-09.
- How severe is CVE-2026-55689?
- Medium severity. CVSS v3 base score is 6.8 out of 10.