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Vulnerability record · CVE-2026-55689 · published 9 July 2026

CVE-2026-55689: Openfga helm charts improper authentication vulnerability

Openfga · Helm Charts

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.

8.1 CVSS 3.1 High EPSS 0.41% · top 67.7% CWE-287 · Improper authentication
8.1CVSS 3.1 base score
0.41%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
5References
14 Jul 2026Last modified by NVD

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.

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

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/openfga/helm-ch Broken Link
https://github.com/openfga/helm-charts/releases/tag/openfga-0.3.9 ProductRelease Notes
https://github.com/openfga/openfga/commit/44596773b2e62738720ef215bf7fa04352954271 Patch
https://github.com/openfga/openfga/releases/tag/v1.18.0 ProductRelease Notes
https://github.com/openfga/openfga/security/advisories/GHSA-hcxc-wf8j-23hv Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-55689), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.