CVE-2025-54499

Summary

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

Affected Software

VendorProductVersion RangeStatus
MattermostMattermost10.5.0 <= 10.5.10affected
MattermostMattermost10.11.0 <= 10.11.2affected
MattermostMattermost10.12.0unaffected
MattermostMattermost10.5.11unaffected
MattermostMattermost10.11.3unaffected

Weaknesses

  • CWE-208: CWE-208: Observable Timing Discrepancy

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References