GO-2025-4186
NoneCVSS
—
EPSS
—
Published
Dec 8, 2025
CISA due date
—
The record
Mattermost Server does not prevent System Admin from arbitrary file creation in github.com/mattermost/mattermost-server
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 0 | 4.1.2-0.20171004201910-6be8113eb60c |
| Go | github.com/mattermost/mattermost-server | 4.2.0-rc1.0.20171004154238-fadd9514f6e7 | 4.2.1-0.20171004194140-6d3cb2ce07fc |
| Go | github.com/mattermost/mattermost-server | 4.3.0-rc1 | 4.3.0 |
| Go | github.com/mattermost/mattermost-server | 4.3.0-rc1+incompatible | 4.3.0+incompatible |
| go | github.com/mattermost/mattermost-server | 4.3.0-rc1 | 4.3.0 |
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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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