CVE-2026-55689CWE-287

OpenFGA: OIDC audience validation skipped when --authn-oidc-audience is unset

Medium · published July 9, 2026

CVSS v3.1
6.8
EPSS
0%
Percentile
33.8
In the wild
Unconfirmed
What it is

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 was not set, allowing a token minted for an unrelated service by the same identity provider to authenticate to OpenFGA. This issue is fixed in 1.18.0.

The record
Technical detail
CVSS v3.1
6.8 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00407 · 33.8th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-07-09T21:06Z
EPSS history
Timeline
  • 09 JUL 21:06Z
    OpenFGA: OIDC audience validation skipped when --authn-oidc-audience is unset
    cvelistv5