CVE-2025-12559

Description

Mattermost fails to sanitize team email addresses in github.com/mattermost/mattermost-server. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/mattermost/mattermost-server from v10.5.0 before v10.5.13, from v10.11.0 before v10.11.5, from v10.12.0 before v10.12.2, from v11.0.0 before v11.0.3.

Affected packages (6)

• Go/github.com/mattermost/mattermost-server>= 11.0.0, < 11.0.3
• Go/github.com/mattermost/mattermost-serverfrom 0
• Go/github.com/mattermost/mattermost-server/v5from 0
• Go/github.com/mattermost/mattermost-server/v6from 0
• Go/github.com/mattermost/mattermost/server/v8from 0, < 8.0.0-20251015091448-abbf01b9db45
• Go/github.com/mattermost/mattermost/server/v8from 0, < 8.0.0-20251015091448-abbf01b9db45

CVSS scores

References (10)

• ADVISORYhttps://github.com/advisories/GHSA-4g87-9x45-cx2h
• ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-12559
• PATCHhttps://github.com/mattermost/mattermost
• WEBhttps://github.com/mattermost/mattermost/commit/5d8719042c1807da59ac8a821624eb01152d8495
• WEBhttps://github.com/mattermost/mattermost/commit/649aee8fa9184ca59bd66022a33b8f8918e413aa
• WEBhttps://github.com/mattermost/mattermost/commit/7ccb62db7958abd6a4b21a06c5a4f5367a8f8b1f
• WEBhttps://github.com/mattermost/mattermost/commit/9f54e5cdc3aef412945ff0e6a58338f7b549bdda
• WEBhttps://github.com/mattermost/mattermost/commit/abbf01b9db45d1850eaf3701ea8362b910193ffd
• WEBhttps://github.com/mattermost/mattermost/pull/34110
• WEBhttps://mattermost.com/security-updates