Go/github.com/mattermost/mattermost/server/v8 CVE-2025-20086: medium 6.5, EPSS 0.45%

Mattermost fails to properly validate post props in github.com/mattermost/mattermost-server

Action: Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20241127161322-25ff7a3779a5 or later.

go get github.com/mattermost/mattermost/server/v8@v8.0.0-20241127161322-25ff7a3779a5

Affected

Fixed versions

Sources

• osv: GO-2025-3392#Go/github.com/mattermost/mattermost/server/v8
• nvd: CVE-2025-20086
• https://github.com/advisories/GHSA-5m7j-6gc4-ff5g
• https://mattermost.com/security-updates

CVE-2025-20086 · published 2025-01-16T21:58:23Z · modified 2026-02-04T03:28:02.836322Z · JSON