{"id":"CVE-2025-54499","revision":"96d13af6e429432f874e8920293a05c9","records":[{"revision":"96d13af6e429432f874e8920293a05c9","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-54499","aliases":[],"title":"Insecure string comparison enables timing attacks","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","state":0,"publishedAt":"2025-10-16T08:17:20.937+00:00","modifiedAt":"2025-10-16T13:51:10.32+00:00","affected":[{"ecosystem":"Vendor product","name":"Mattermost","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"product\": \"Mattermost\",\n                    \"vendor\": \"Mattermost\",\n                    \"versions\": [\n                        {\n                            \"lessThanOrEqual\": \"10.5.10\",\n                            \"status\": \"affected\",\n                            \"version\": \"10.5.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"lessThanOrEqual\": \"10.11.2\",\n                            \"status\": \"affected\",\n                            \"version\": \"10.11.0\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"10.12.0\",\n                            \"status\": \"unaffected\"\n                        },\n                        {\n                            \"version\": \"10.5.11\",\n                            \"status\": \"unaffected\"\n                        },\n                        {\n                            \"version\": \"10.11.3\",\n                            \"status\": \"unaffected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","score":3.1,"severity":"LOW"}],"references":["https://mattermost.com/security-updates"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-54499","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-54499","identifiers":["CVE-2025-54499"]},"retained":false,"historicalAffected":[]}],"coverage":[]}