Go/github.com/mattermost/mattermost-server CVE-2026-3112: unknown, EPSS 0.44%
Mattermost allows system administrators to read arbitrary host files via malicious AdvancedLoggingJSON configuration in github.com/mattermost/mattermost-server
Action: Upgrade github.com/mattermost/mattermost-server to 10.11.12+incompatible or later.
go get github.com/mattermost/mattermost-server@v10.11.12+incompatiblego get github.com/mattermost/mattermost-server@v11.2.4+incompatiblego get github.com/mattermost/mattermost-server@v11.3.2+incompatiblego get github.com/mattermost/mattermost-server@v11.4.1+incompatibleAffected
| introduced | fixed | last affected |
|---|---|---|
| 10.11.0-rc1+incompatible | 10.11.12+incompatible | - |
| 11.2.0-rc1+incompatible | 11.2.4+incompatible | - |
| 11.3.0-rc1+incompatible | 11.3.2+incompatible | - |
| 11.4.0-rc1+incompatible | 11.4.1+incompatible | - |
Fixed versions
| 10.11.12+incompatible | 11.2.4+incompatible | 11.3.2+incompatible | 11.4.1+incompatible |
Sources
- osv: GO-2026-5092
- https://github.com/advisories/GHSA-3mw5-466q-295q
- https://nvd.nist.gov/vuln/detail/CVE-2026-3112
- https://mattermost.com/security-updates
CVE-2026-3112 · published · modified · JSON