{"id":"CVE-2025-2475","aliases":["GHSA-6rqh-8465-2xcw","GO-2025-3610"],"title":"Mattermost vulnerable to Incorrect Implementation of Authentication Algorithm","summary":"Mattermost vulnerable to Incorrect Implementation of Authentication Algorithm","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","vendor":"mattermost","product":"github.com/mattermost/mattermost/server/v8","ecosystem":"go","affected":["github.com/mattermost/mattermost/server/v8 >= 10.5.0, < 10.5.2","github.com/mattermost/mattermost/server/v8 >= 9.11.0, < 9.11.10","github.com/mattermost/mattermost/server/v8 < 8.0.0-20250220161544-fd356b62b4dd"],"patched":["github.com/mattermost/mattermost/server/v8 10.5.2","github.com/mattermost/mattermost/server/v8 9.11.10","github.com/mattermost/mattermost/server/v8 8.0.0-20250220161544-fd356b62b4dd"],"published":"2025-04-14","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:50:57.227800886Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-6rqh-8465-2xcw","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-2475"},{"url":"https://github.com/mattermost/mattermost/commit/124547a9ef424431e1e6cf09bdba6c1099d415de"},{"url":"https://github.com/mattermost/mattermost/commit/40fd60714bd055e00c16301ba6dc0fddfc44e15e"},{"url":"https://github.com/mattermost/mattermost/commit/88523ceed8a7547c4a4203a30e7c3a8097346280"},{"url":"https://github.com/mattermost/mattermost/commit/bcd7a4c2bd856dbb40fcda227b363fa5f6f548a7"},{"url":"https://github.com/mattermost/mattermost/commit/fd356b62b4dd3318d2c8019d2310abdd6ce24c8c"},{"url":"https://github.com/mattermost/mattermost"},{"url":"https://mattermost.com/security-updates"},{"url":"https://pkg.go.dev/vuln/GO-2025-3610"}],"tags":["osv","go"],"epss":0.00228,"epssPercentile":0.13867,"ingestedAt":"2026-09-12T03:13:01.760Z","slug":"CVE-2025-2475","body":"## Overview\n\nMattermost versions 10.5.x <= 10.5.1, 10.4.x <= 10.4.3, 9.11.x <= 9.11.9 fail to invalidate the cache when a user account is converted to a bot which allows an attacker to login to the bot exactly one time via normal credentials.\n\n## Affected packages\n\n- `github.com/mattermost/mattermost/server/v8 >= 10.5.0, < 10.5.2`\n- `github.com/mattermost/mattermost/server/v8 >= 9.11.0, < 9.11.10`\n- `github.com/mattermost/mattermost/server/v8 < 8.0.0-20250220161544-fd356b62b4dd`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `github.com/mattermost/mattermost/server/v8 10.5.2`\n- `github.com/mattermost/mattermost/server/v8 9.11.10`\n- `github.com/mattermost/mattermost/server/v8 8.0.0-20250220161544-fd356b62b4dd`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}