MEDIUM6.5
GO-2026-4326
Mattermost is vulnerable to DoS due to infinite re-renders on API errors in github.com/mattermost/mattermost-server
Quick fix
GO-2026-4326 — github.com/mattermost/mattermost-server: upgrade to the fixed version with the command below.
go get github.com/mattermost/mattermost-server@v10.11.9+incompatibleDetails
Mattermost is vulnerable to DoS due to infinite re-renders on API errors 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: .
Are you affected?
Enter the version of the package you're using.
Affected packages
Go/github.com/mattermost/mattermost-server
Introduced in:
10.11.0+incompatibleFixed in: 10.11.9+incompatibleFix
go get github.com/mattermost/mattermost-server@v10.11.9+incompatibleReferences
- https://github.com/advisories/GHSA-mx8m-v8qm-xwr8[ADVISORY]
- https://nvd.nist.gov/vuln/detail/CVE-2025-14435[ADVISORY]
- https://github.com/mattermost/mattermost/commit/613bb616cd62c584a606919e6978688e7b87d81e[WEB]
- https://github.com/mattermost/mattermost/commit/9f7629504bc93f79af8d606329c025a687e143cd[WEB]
- https://github.com/mattermost/mattermost/commit/cc6b77b271324796b72f1e6b82dba85a86462f9f[WEB]
- https://mattermost.com/security-updates[WEB]