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CVE-2025-25196— OpenFGA Authorization Bypass

Quick assessment

Affected
openfga openfga
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenFGA是OpenFGA开源的一款为开发人员构建并受 Google Zanzibar 启发的高性能和灵活的授权/许可引擎。 OpenFGA v1.8.5之前版本存在授权问题漏洞，该漏洞源于容易受到授权绕过的影响。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.43% · P38

Possible ATT&CK Techniques 1 AI

T1528 · Steal Application Access Token
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I. Basic Information for CVE-2025-25196

Vulnerability Information
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Vulnerability Title
OpenFGA Authorization Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
OpenFGA 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenFGA是OpenFGA开源的一款为开发人员构建并受 Google Zanzibar 启发的高性能和灵活的授权/许可引擎。 OpenFGA v1.8.5之前版本存在授权问题漏洞，该漏洞源于容易受到授权绕过的影响。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
openfga openfga < 1.8.5 -

II. Public POCs for CVE-2025-25196

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III. Intelligence Information for CVE-2025-25196

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Patches & Fixes for CVE-2025-25196 (1)

Vendor Advisories for CVE-2025-25196 (1)

IV. Related Vulnerabilities

Same product: openfga
Same vendor: openfga
Same weakness: CWE-285