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x/vulndb: potential Go vuln in github.com/mattermost/mattermost/server/v8: GHSA-cw7q-5cgc-h3h9 #3555

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GoVulnBot opened this issue Mar 21, 2025 · 1 comment
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x/vulndb: potential Go vuln in github.com/mattermost/mattermost/server/v8: GHSA-cw7q-5cgc-h3h9 #3555

GoVulnBot opened this issue Mar 21, 2025 · 1 comment
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Advisory GHSA-cw7q-5cgc-h3h9 references a vulnerability in the following Go modules:

Module
github.com/mattermost/mattermost-server
github.com/mattermost/mattermost-server/v5
github.com/mattermost/mattermost-server/v6
github.com/mattermost/mattermost/server/v8
github.com/mattermost/mattermost/server/v9

Description:
Mattermost versions 9.11.x <= 9.11.8 fail to prompt for explicit approval before adding a team admin to a private channel, which team admins to joining private channels via crafted permalink links without explicit consent from them.

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
      vulnerable_at: 10.6.1+incompatible
    - module: github.com/mattermost/mattermost-server/v5
      vulnerable_at: 5.39.3
    - module: github.com/mattermost/mattermost-server/v6
      vulnerable_at: 6.7.2
    - module: github.com/mattermost/mattermost/server/v8
      vulnerable_at: 8.0.0-20250321150636-d69e8b3e9066
    - module: github.com/mattermost/mattermost/server/v9
      non_go_versions:
        - introduced: 9.11.0
        - fixed: 9.11.9
summary: |-
    Mattermost fail to prompt for explicit approval before adding a team admin to a
    private channel in github.com/mattermost/mattermost-server
cves:
    - CVE-2025-27715
ghsas:
    - GHSA-cw7q-5cgc-h3h9
references:
    - advisory: https://github.com/advisories/GHSA-cw7q-5cgc-h3h9
    - advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-27715
    - web: https://mattermost.com/security-updates
notes:
    - fix: 'github.com/mattermost/mattermost/server/v9: could not add vulnerable_at: no fix, but could not find latest version from proxy: unexpected end of JSON input'
source:
    id: GHSA-cw7q-5cgc-h3h9
    created: 2025-03-21T23:03:45.630482381Z
review_status: UNREVIEWED
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Change https://go.dev/cl/660559 mentions this issue: data/reports: add 28 reports

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