Go/github.com/mattermost/mattermost-server CVE-2026-28732: medium 4.3, EPSS 0.15%
Mattermost doesn't enforce slash command trigger-word uniqueness during command updates
Action: Upgrade github.com/mattermost/mattermost-server to 5.3.2-0.20260306123948-f5fe8ded6b63 or later.
go get github.com/mattermost/mattermost-server@v5.3.2-0.20260306123948-f5fe8ded6b63Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 5.3.2-0.20260306123948-f5fe8ded6b63 | - |
Fixed versions
| 5.3.2-0.20260306123948-f5fe8ded6b63 |
Sources
- osv: GHSA-wvcv-9xpm-7mqc#Go/github.com/mattermost/mattermost-server
- https://nvd.nist.gov/vuln/detail/CVE-2026-28732
- https://github.com/mattermost/mattermost/commit/f5fe8ded6b633db7804ae25b42ea12ce635d6ea6
- https://github.com/mattermost/mattermost
- https://mattermost.com/security-updates
CVE-2026-28732 · published · modified · JSON