CVE-2026-4635
2 advisories.
Go/github.com/mattermost/mattermost-server CVE-2026-4635: medium 5.3
Mattermost doesn't archive the channel before removing persistent notifications
Action: Upgrade github.com/mattermost/mattermost-server to 10.11.15 or later.
go get github.com/mattermost/mattermost-server@v11.6.1go get github.com/mattermost/mattermost-server@v11.5.4go get github.com/mattermost/mattermost-server@v11.4.5go get github.com/mattermost/mattermost-server@v10.11.15Affected
| introduced | fixed | last affected |
|---|---|---|
| 11.6.0 | 11.6.1 | - |
| 11.5.0 | 11.5.4 | - |
| 11.4.0 | 11.4.5 | - |
| 10.11.0 | 10.11.15 | - |
Fixed versions
| 11.6.1 | 11.5.4 | 11.4.5 | 10.11.15 |
Sources
- osv: GHSA-pg7c-462j-grxv
- https://nvd.nist.gov/vuln/detail/CVE-2026-4635
- https://github.com/mattermost/mattermost
- https://mattermost.com/security-updates
CVE-2026-4635 · published · modified · JSON
Go/github.com/mattermost/mattermost-server CVE-2026-4635: unknown
Mattermost doesn't archive the channel before removing persistent notifications in github.com/mattermost/mattermost-server
Action: Upgrade github.com/mattermost/mattermost-server to 10.11.15+incompatible or later.
go get github.com/mattermost/mattermost-server@v10.11.15+incompatiblego get github.com/mattermost/mattermost-server@v11.4.5+incompatiblego get github.com/mattermost/mattermost-server@v11.5.4+incompatiblego get github.com/mattermost/mattermost-server@v11.6.1+incompatibleAffected
| introduced | fixed | last affected |
|---|---|---|
| 10.11.0+incompatible | 10.11.15+incompatible | - |
| 11.4.0+incompatible | 11.4.5+incompatible | - |
| 11.5.0+incompatible | 11.5.4+incompatible | - |
| 11.6.0+incompatible | 11.6.1+incompatible | - |
Fixed versions
| 10.11.15+incompatible | 11.4.5+incompatible | 11.5.4+incompatible | 11.6.1+incompatible |
Sources
- osv: GO-2026-5820
- https://github.com/advisories/GHSA-pg7c-462j-grxv
- https://nvd.nist.gov/vuln/detail/CVE-2026-4635
- https://mattermost.com/security-updates
CVE-2026-4635 · published · modified · JSON