CVE-2026-33729— OpenFGA has an Authorization Bypass through cached keys
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 1.13.1之前版本存在安全漏洞，该漏洞源于启用缓存的模型在特定条件下可能产生相同的缓存键，可能导致重用早期缓存结果。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-33729
Vulnerability Information
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Vulnerability Title
OpenFGA has an Authorization Bypass through cached keys
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. In versions prior to 1.13.1, under specific conditions, models using conditions with caching enabled can result in two different check requests producing the same cache key. This can result in OpenFGA reusing an earlier cached result for a different request. Users are affected if the model has relations which rely on condition evaluation andncaching is enabled. OpenFGA v1.13.1 contains a patch.
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
输入验证不恰当
Source: CVE Program / CVE List V5
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 1.13.1之前版本存在安全漏洞，该漏洞源于启用缓存的模型在特定条件下可能产生相同的缓存键，可能导致重用早期缓存结果。
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-2026-33729
| # | POC Description | Source Link | Shenlong Link |
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Patches & Fixes for CVE-2026-33729 (1)
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Merge commit from fork · openfga/openfga@049b50c · GitHub x_refsource_MISC
Vendor Advisories for CVE-2026-33729 (1)
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OpenFGA Improper Policy Enforcement · Advisory · openfga/openfga · GitHub x_refsource_CONFIRM
Vendor Pages for CVE-2026-33729 (1)
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Release v1.13.1 · openfga/openfga · GitHub x_refsource_MISC
IV. Related Vulnerabilities
Same product: openfga
-
CVE-2026-55689
OpenFGA: OIDC audience validation skipped when --authn-oidc- -
CVE-2026-55170
OpenFGA MySQL backend: case-insensitive collation on identif -
CVE-2026-48096
OpenFGA: Cache-key delimiter injection in openfga/openfga sh -
CVE-2026-41131
OpenFGA has Improper Policy Enforcement -
CVE-2026-40293
OpenFGA Playground Preshared Key Exposure
Same vendor: openfga
-
CVE-2026-55689
OpenFGA: OIDC audience validation skipped when --authn-oidc- -
CVE-2026-55170
OpenFGA MySQL backend: case-insensitive collation on identif -
CVE-2026-48096
OpenFGA: Cache-key delimiter injection in openfga/openfga sh -
CVE-2026-41131
OpenFGA has Improper Policy Enforcement -
CVE-2026-40293
OpenFGA Playground Preshared Key Exposure
V. Comments for CVE-2026-33729
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