UpHeron
All vulnerabilities

Servers and applications

CVE-2025-54499

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

Severity
Low 3.7
Published
16 Oct 2025
Last changed
19 Oct 2026
Added to UpHeron
1 Nov 2026
Fixed in
10.5.11, 10.11.3
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • From 10.5.0 before 10.5.11
  • From 10.11.0 before 10.11.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-54499
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-54499