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Go/github.com/mattermost/mattermost-server CVE-2025-14350: medium 4.3, EPSS 0.19%

Mattermost fails to properly validate team membership when processing channel mentions

Action: Upgrade github.com/mattermost/mattermost-server to 5.3.2-0.20251209134645-761e56bb11cc or later.

go get github.com/mattermost/mattermost-server@v5.3.2-0.20251209134645-761e56bb11cc

Affected

introducedfixedlast affected
11.1.0--
10.11.0--
11.2.0--
05.3.2-0.20251209134645-761e56bb11cc-

Fixed versions

5.3.2-0.20251209134645-761e56bb11cc

Sources

CVE-2025-14350 · published · modified · JSON