GHSA-jwvj-g8pc-cx45

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    GHSA-jwvj-g8pc-cx45

    Published: 7 Apr 2026Last Modified: 10 Sept 2026

    Summary: OpenFGA's BatchCheck within-request deduplication produces incorrect authorization decisions via list-value cache-key collision

    Details: ### Description In OpenFGA, under specific conditions, BatchCheck calls with multiple checks sent for the same object, relation, and user combination can result in improper policy enforcement. ### Am I affected? You are affected if you meet the following preconditions: 1. You execute **BatchCheck** operations which rely on context. 2. Multiple checks are sent within a single BatchCheck operation for the same user/object/relation combination, each containing context. 3. The contexts between those checks differ in a specific way ### Fix Upgrade to OpenFGA v1.14.0 ### Acknowledgement OpenFGA would like to thank @bugbunny-research for the discovery and detailed report.

    References: https://github.com/openfga/openfga/security/advisories/GHSA-jwvj-g8pc-cx45, https://nvd.nist.gov/vuln/detail/CVE-2026-34972, https://github.com/openfga/openfga

    Affected packages

    Package

    Name: github.com/openfga/openfga

    Purl: pkg:golang/github.com/openfga/openfga

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 1.8.0
    Fixed -1.14.0

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-jwvj-g8pc-cx45 | CVE-DB