GO-2026-4325
NoneCVSS
—
EPSS
—
Published
Feb 26, 2026
CISA due date
—
The record
Mattermost is vulnerable to CPU exhaustion via crafted HTTP request in github.com/mattermost/mattermost-server
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 10.11.0 | 10.11.9 |
| Go | github.com/mattermost/mattermost-server | 10.11.0+incompatible | 10.11.9+incompatible |
| Go | github.com/mattermost/mattermost-server | 11.0.0 | 11.2.0 |
| go | github.com/mattermost/mattermost-server | 10.11.0 | 10.11.9 |
| go | github.com/mattermost/mattermost-server | 11.0.0 | 11.2.0 |
Related vulnerabilities
- CVE-2025-14822 Mattermost is vulnerable to CPU exhaustion via crafted HTTP request Same vulnerability
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- GO-2026-4496 Mattermost doesn't validate user permissions when creating Jira issues from Mattermost… Also affects github.com/mattermost/mattermost-server
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