CVE-2026-55689

medium

Description

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.

References

https://github.com/openfga/openfga/security/advisories/GHSA-hcxc-wf8j-23hv

https://github.com/openfga/openfga/releases/tag/v1.18.0

https://github.com/openfga/openfga/commit/44596773b2e62738720ef215bf7fa04352954271

https://github.com/openfga/helm-charts/releases/tag/openfga-0.3.9

https://github.com/openfga/helm-ch

Details

Source: Mitre, NVD

Published: 2026-07-09

Updated: 2026-07-10

Risk Information

CVSS v2

Base Score: 6.6

Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 6.8

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Severity: Medium

EPSS

EPSS: 0.00298