CVE-2026-24851
HIGH
GHSA-jq9f-gm9w-rwm9
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3Tags
Description
OpenFGA is a high-performance and flexible authorization/permission engine built for developers and inspired by Google Zanzibar. OpenFGA v1.8.5 to v1.11.2 ( openfga-0.2.22<= Helm chart <= openfga-0.2.51, v.1.8.5 <= docker <= v.1.11.2) are vulnerable to improper policy enforcement when certain Check calls are executed. The vulnerability requires a model that has a a relation directly assignable by a type bound public access and assignable by type bound non-public access, a tuple assigned for the relation that is a type bound public access, a tuple assigned for the same object with the same relation that is not type bound public access, and a tuple assigned for a different object that has an object ID lexicographically larger with the same user and relation which is not type bound public access. This vulnerability is fixed in v1.11.3.
Analysis
Improper policy enforcement in OpenFGA versions 1.8.5 through 1.11.2 (and corresponding Helm Chart and Docker releases) allows authenticated users to bypass authorization checks through specially crafted tuple configurations that mix type-bound public and non-public access policies. An attacker with valid credentials can exploit mismatched tuple assignments to gain unauthorized access to protected resources by leveraging lexicographic object ID ordering in the authorization engine. …
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Remediation
Within 24 hours: Inventory all systems running OpenFGA and assess exposure; enable detailed logging of authorization decisions. Within 7 days: Implement network segmentation to restrict OpenFGA access to trusted applications only; conduct access control audit for anomalies. …
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