CVE-2025-14350

Description

Mattermost fails to properly validate team membership when processing channel mentions 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/v5 before v5.3.2-0.20251209134645-761e56bb11cc.

How to fix CVE-2025-14350

To remediate CVE-2025-14350, upgrade the affected package to a fixed version below.

• —no fix listed
• —no fix listed
• —no fix listed
• —no fix listed
• —upgrade to 8.0.0-20251209134645-761e56bb11cc or later
• —upgrade to 8.0.0-20251209134645-761e56bb11cc or later

Is CVE-2025-14350 being exploited?

Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.

Affected packages (6)

• >= 11.1.0
• from 0
• from 0
• from 0
• from 0, < 8.0.0-20251209134645-761e56bb11cc
• from 0, < 8.0.0-20251209134645-761e56bb11cc

CVSS scores

References (5)

• ADVISORYgithub.com/advisories/GHSA-57cc-2pf4-mhmx
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2025-14350
• PATCHgithub.com/mattermost/mattermost
• WEBgithub.com/mattermost/mattermost/commit/761e56bb11ccb751ddbe4bab5898ccc2b384fd82
• WEB