GO-2026-4463
NoneCVSS
—
EPSS
—
Published
Feb 17, 2026
CISA due date
—
The record
Mattermost Server uses weak hashing for OAuth, email verification tokens and invitations in github.com/mattermost/mattermost-server
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 0 | 3.7.5-0.20170421192444-247cd1e51a8c |
| Go | github.com/mattermost/mattermost-server | 3.8.0 | 3.8.2 |
| Go | github.com/mattermost/mattermost-server | 3.8.0+incompatible | 3.8.2+incompatible |
Related vulnerabilities
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- GO-2026-4326 Mattermost is vulnerable to DoS due to infinite re-renders on API errors in… Also affects github.com/mattermost/mattermost-server
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- GO-2026-4282 Mattermost Server is vulnerable to channel invisibility DoS via misformatted post in… Also affects github.com/mattermost/mattermost-server
- 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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