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x/vulndb: potential Go vuln in github.com/mattermost/mattermost-server: GHSA-424h-xj87-m937 #4030

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x/vulndb: potential Go vuln in github.com/mattermost/mattermost-server: GHSA-424h-xj87-m937#4030
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opened on Oct 16, 2025

Advisory GHSA-424h-xj87-m937 references a vulnerability in the following Go modules:

Module
github.com/mattermost/mattermost-server

Description:
Mattermost versions 10.5.x <= 10.5.10, 10.11.x <= 10.11.2 fail to properly validate guest user permissions when adding channel members which allows guest users to add any team members to their private channels via the /api/v4/channels/{channel_id}/members endpoint

References:

Cross references:

See doc/quickstart.md for instructions on how to triage this report.

id: GO-ID-PENDING
modules:
    - module: github.com/mattermost/mattermost-server
      versions:
        - introduced: 10.5.0+incompatible
        - fixed: 10.5.11+incompatible
        - introduced: 10.11.0+incompatible
        - fixed: 10.11.3+incompatible
      non_go_versions:
        - fixed: 8.0.0-20250820115038-ff30b84049f0
      vulnerable_at: 10.11.2+incompatible
summary: Mattermost has an Incorrect Authorization vulnerability in github.com/mattermost/mattermost-server
cves:
    - CVE-2025-10545
ghsas:
    - GHSA-424h-xj87-m937
references:
    - advisory: https://github.com/advisories/GHSA-424h-xj87-m937
    - advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-10545
    - fix: https://github.com/mattermost/mattermost/commit/fb9c583f5e466a566a5122154ef337bbf2238902
    - fix: https://github.com/mattermost/mattermost/commit/ff30b84049f0193f0570d30e46cffc3602298c67
    - fix: https://github.com/mattermost/mattermost/pull/31319
    - fix: https://github.com/mattermost/mattermost/pull/33827
    - web: https://mattermost.com/security-updates
source:
    id: GHSA-424h-xj87-m937
    created: 2025-10-16T21:01:28.748328691Z
review_status: UNREVIEWED

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