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x/vulndb: potential Go vuln in github.com/mattermost/mattermost-server: GHSA-xr3w-rmvj-f6m7 #4036

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x/vulndb: potential Go vuln in github.com/mattermost/mattermost-server: GHSA-xr3w-rmvj-f6m7#4036
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opened on Oct 16, 2025

Advisory GHSA-xr3w-rmvj-f6m7 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 use constant-time comparison for sensitive string comparisons which allows attackers to exploit timing oracles to perform byte-by-byte brute force attacks via response time analysis on Cloud API keys and OAuth client secrets.

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: 8.0.0-20250728063359-38208b8f065f
      vulnerable_at: 10.11.2+incompatible
summary: Mattermost has an Observable Timing Discrepancy vulnerability in github.com/mattermost/mattermost-server
cves:
    - CVE-2025-54499
ghsas:
    - GHSA-xr3w-rmvj-f6m7
references:
    - advisory: https://github.com/advisories/GHSA-xr3w-rmvj-f6m7
    - advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-54499
    - fix: https://github.com/mattermost/mattermost/commit/38208b8f065f0786eac0e968f9d754b91b62878c
    - fix: https://github.com/mattermost/mattermost/commit/97a4c7839cf5610cfe17c52042878aebb7678372
    - web: https://mattermost.com/security-updates
source:
    id: GHSA-xr3w-rmvj-f6m7
    created: 2025-10-16T22:02:53.822348708Z
review_status: UNREVIEWED

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