CVE-2026-34972— OpenFGA's BatchCheck within-request deduplication produces incorrect authorization decisions via list-value cache-key collision
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I. Basic Information for CVE-2026-34972
Vulnerability Information
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Vulnerability Title
OpenFGA's BatchCheck within-request deduplication produces incorrect authorization decisions via list-value cache-key collision
Source: NVD (National Vulnerability Database)
Vulnerability Description
OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. From 1.8.0 to 1.13.1, under specific conditions, BatchCheck calls with multiple checks sent for the same object, relation, and user combination can result in improper policy enforcement. This vulnerability is fixed in 1.14.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenFGA 安全漏洞
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 1.8.0至1.13.1版本存在安全漏洞，该漏洞源于特定条件下对同一对象、关系和用户组合的BatchCheck调用可能导致策略执行不当。
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
II. Public POCs for CVE-2026-34972
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