GHSA-hcxc-wf8j-23hvPublished

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

Exploitation and risk

CISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.

Which CVEs have scores here?

This view includes predictions for CVE identifiers explicitly listed in public NuGet advisories. Microsoft release pages have their own prediction coverage. Check source status for the scope and latest checks.

No exploitation or prediction data is available here for these CVEs. This does not mean they are safe or unlikely to be exploited.

cve-program · CVE-2026-55689

Published

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.

Source published: 9 Jul 2026 21:06:22 UTC
Source modified: 10 Jul 2026 13:45:39 UTC
Saved here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 6.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

euvd · EUVD-2026-42710

Published

Additional publisher context

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Jul 9, 2026, 9:06:22 PM

dateUpdated: Jul 10, 2026, 1:45:39 PM

Source published: Jul 9, 2026, 9:06:22 PM (timezone not stated)
Source modified: Jul 10, 2026, 1:45:39 PM (timezone not stated)
Saved here: 14 Nov 2026 07:08:10 UTC
Source terms: ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

Source: euvd · ENISA EUVD · source terms and attribution apply. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

EUVD CVSS 3.1 · 6.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

nvd · CVE-2026-55689

Published

Additional publisher context

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-287

Original publisher date fields

published: 2026-07-09T22:17:06.553

lastModified: 2026-07-14T01:28:44.147

2 source CPE criteria · context only

cpe:2.3:a:openfga:helm_charts:*:*:*:*:*:openfga:*:*
cpe:2.3:a:openfga:openfga:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 9 Jul 2026 22:17:06 UTC
Source modified: 14 Jul 2026 01:28:44 UTC
Saved here: 25 Oct 2026 14:19:05 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

Source: nvd · NIST NVD usage terms; underlying source attribution retained. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · [email protected] · Secondary · 6.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS 3.1 · [email protected] · Primary · 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

osv · GHSA-hcxc-wf8j-23hv

Published

## Description OpenFGA's OIDC authenticator skipped JWT audience (`aud`) validation when no audience was configured. In deployments where one identity provider issues tokens for multiple services, a token minted for an unrelated service could authenticate to OpenFGA. ## Preconditions This applies if the following preconditions are met: 1. You run OpenFGA with `authn.method` set to `oidc`. 2. You configured `authn.oidc.issuer` but did **not** set `authn.oidc.audience` (`--authn-oidc-audience` / `OPENFGA_AUTHN_OIDC_AUDIENCE`). ## Fix Upgrade to OpenFGA 1.18.0 or greater. OpenFGA now refuses to start in `oidc` mode unless both `authn.oidc.issuer` and `authn.oidc.audience` are set, and the `aud` claim is always validated. ## Acknowledgements OpenFGA would like to thank https://github.com/0xVijay for the report.

Source published: 19 Jun 2026 14:35:35 UTC
Source modified: 10 Sep 2026 03:50:49 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · GitHub Advisory Database · CC-BY-4.0. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS_V3 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Publisher rating · MODERATE

osv · GO-2026-5423

Published

OpenFGA: OIDC audience validation skipped when --authn-oidc-audience is unset in github.com/openfga/openfga

Source published: 25 Jun 2026 22:34:31 UTC
Source modified: 25 Jun 2026 23:01:12 UTC
Saved here: 24 Oct 2026 13:19:41 UTC
Source terms: OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

Source: osv · OSV · upstream source license applies. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.