CVE-2025-54499

LowCVSS 3.7/10Last modified Oct 19, 2026

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

Metrics

CVSS 3.1 3.7/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-208

Affected software

No affected versions have been published.

Timeline

Published: Oct 16, 2025
Last modified: Oct 19, 2026
NVD status: Analyzed

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