PYSEC-2026-3942

    Dashboard / Vulnerabilities / PYSEC-2026-3942

    PYSEC-2026-3942

    Published: 10 Sept 2026Last Modified: 10 Sept 2026

    Summary: Weblate has IDOR in GroupViewSet that allows authenticated project manager to gain unauthorized read access to any private project

    Details: ### Impact The API did not properly handle project- and workspace-scoped teams and allowed setting invalid configurations, including granting access to projects the user has no access to. ### Patches * https://github.com/WeblateOrg/weblate/pull/19970 ### References Parts of this issue were independently reported by four reporters: * @H3xV0rT3x via GitHub * [imhego](https://hackerone.com/imhego) via HackerOne * [v01demort](https://hackerone.com/v01demort) via HackerOne * [b4nder](https://hackerone.com/b4nder) via HackerOne

    References: https://github.com/WeblateOrg/weblate/security/advisories/GHSA-2q2q-jr9g-v9rf, https://nvd.nist.gov/vuln/detail/CVE-2026-55228, https://github.com/WeblateOrg/weblate/pull/19970, https://github.com/WeblateOrg/weblate/commit/19babc99b05f2cc299b5090f90f79d8181f25d79, https://github.com/WeblateOrg/weblate, https://pypi.org/project/weblate, https://github.com/advisories/GHSA-2q2q-jr9g-v9rf

    Affected packages

    Package

    Name: weblate

    Purl: pkg:pypi/weblate

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2026.7

    Affected versions

    1.9

    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
    PYSEC-2026-3942 | CVE-DB