Medium severity6.5NVD Advisory· Published Nov 14, 2025· Updated Jun 17, 2026
CVE-2025-55070
CVE-2025-55070
Description
Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/mattermost/mattermost-serverGo | < 11.1.0 | 11.1.0 |
github.com/mattermost/mattermost/server/v8Go | < 8.0.0-20250912063506-7d8b7b5e4a60 | 8.0.0-20250912063506-7d8b7b5e4a60 |
Affected products
5cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*range: <11.0.0
- (no CPE)range: <11
- ghsa-coords3 versionspkg:golang/github.com/mattermost/mattermost-serverpkg:golang/github.com/mattermost/mattermost/server/v8pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0
< 11.1.0+ 2 more
- (no CPE)range: < 11.1.0
- (no CPE)range: < 8.0.0-20250912063506-7d8b7b5e4a60
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-xpg8-8xpv-948pghsaADVISORY
- mattermost.com/security-updatesnvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2025-55070ghsaADVISORY
- github.com/mattermost/mattermost/commit/7d8b7b5e4a6076b2f7c87606883c417f9a610df5ghsaWEB
News mentions
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