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OpenAdvisories
Medium · 6.8 CVE-2026-55689 EUVD-2026-42710GHSA-hcxc-wf8j-23hvGO-2026-5423

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

Published Jul 9, 2026 · Updated Jul 10, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
openfga openfga < 1.18.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 govulncheck-vulndb 0.0.20260723T184607-160000.1.1 openSUSE-SU-2026:21483-1

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling grafana-12.3 12.3.8-r2 —
Wolfi rolling grafana-12.4 12.4.5-r2 —

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/openfga/openfga < 1.18.0 1.18.0 GHSA-hcxc-wf8j-23hv

Advisories 1

References