CVE-2025-54499 LOW

CVE-2025-54499: Insecure string comparison enables timing attacks

Vendor Mattermost
Product Mattermost
Weakness CWE-208
Published October 16, 2025
Last update October 16, 2025
View on NVD All CVEs

CVSS base score

3.1/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Confidentiality Low
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

October 16, 2025 CVE published
October 16, 2025 Record updated