CVE-2025-25196
criticalpriority · track · 39EPSS 0.004 · 37 %ileEURUUSEPSS · scored 2026-10-27
OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. OpenFGA < v1.8.4 (Helm chart < openfga-0.2.22, docker < v.1.8.4) are vulnerable to authorization bypass when certain Check and ListObject calls are executed. Users on OpenFGA v1.8.4 or previous, specifically under the following conditions are affected by this authorization bypass vulnerability: 1. Calling Check API or ListObjects with a model that has a relation directly assignable to both public access AND userset with the same type. 2. A type bound public access tuple is assigned to an object. 3. userset tuple is not assigned to the same object. and 4. Check request's user field is a userset that has the same type as the type bound public access tuple's user type. Users are advised to upgrade to v1.8.5 which is backwards compatible. There are no known workarounds for this vulnerability.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–critical · 1.5–9.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (5)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- GHSA-g4v5-6f5p-m38jOpenFGA Authorization Bypass2025-02-19ghsa · osvUS
Overview OpenFGA v1.8.4 or previous (Helm chart < openfga-0.2.22, docker < v.1.8.5) are vulnerable to authorization bypass when certain Check and ListObject calls are executed. Am I Affected? If you are using OpenFGA v1.8.4 or previous, specifically under the following conditions, you are affected by this authorization bypass vulnerability: - Calling Check API or ListObjects with a model that has a relation [directly assignable](https://openfga.dev/docs/concepts#what-is-a-directly-related-user-type) to both [public access](https://openfga.dev/docs/concepts#what-is-type-bound-public-access) AND [userset](https://openfga.dev/docs/concepts#what-is-a-user) with the [same type](https://openfga.dev/docs/concepts#what-is-a-type), and - A type bound public access tuple is assigned to an object, and - userset tuple is not assigned to the same object, and - Check request's user field is a userset that has the same type as the type bound public access tuple's user type Fix Upgrade to v1.8.5. This upgrade is backwards compatible.
- GO-2025-3470OpenFGA Authorization Bypass in github.com/openfga/openfga2025-03-03vendor · osvUS
OpenFGA Authorization Bypass in github.com/openfga/openfga
also known as (7)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://github.com/openfga/openfga/commit/0aee4f47e0c642de78831ceb27bb62b116f49588cnnvd
- https://github.com/openfga/openfga/releases/tag/v1.8.5Patchcnnvd
- https://github.com/openfga/openfga/security/advisories/GHSA-g4v5-6f5p-m38jcnnvd
- https://github.com/openfga/openfga/commit/0aee4f47e0c642de78831ceb27bb62b116f49588enisa_euvd
- https://github.com/openfga/openfga/security/advisories/GHSA-g4v5-6f5p-m38jenisa_euvd
- https://github.com/openfga/openfga/commit/0aee4f47e0c642de78831ceb27bb62b116f49588Patchnvd
- https://github.com/openfga/openfga/security/advisories/GHSA-g4v5-6f5p-m38jVendor Advisorynvd
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