要点
- CVE-2025-25196 は github.com/openfga/openfga, helm charts (openfga), openfga (openfga) に影響する深刻度「緊急」 (CVSS 9.8) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：0.43%（全脆弱性の 37.7% より高い）。
- 対処：1.8.5, 0.2.22 以降に更新してください。
概要
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 to both public access AND userset with the same 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.
NVD の説明
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.
github.com/openfga/openfga のその他の脆弱性
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