VDB
GO-2026-4464
GO-2026-4464
PUBLISHED
Mattermost Server has X.509 Improper Certificate Validation in github.com/mattermost/mattermost-server
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| github.com | mattermost/mattermost-server | 0, 3.7.0+incompatible, 3.8.0+incompatible |
Timeline
- Feb 17, 2026 CVE Published
- Feb 19, 2026 CVE Updated
- May 1, 2026 Security Advisory
References
- https://github.com/advisories/GHSA-m462-mqw4-2c8m advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-18911 advisory
- https://mattermost.com/security-updates url
- https://github.com/mattermost/mattermost/commit/222bce0c5c1abb2f58c3a6de1fe8c5d3accffb21 fix
- https://github.com/mattermost/mattermost/commit/691c18157025d4808b5b11de1d6de01050e54fa6 fix
- https://github.com/mattermost/mattermost/commit/e9bb8cdfb4915067349a4840ab15ff941c4eb070 fix