VDB
GO-2026-4463
GO-2026-4463
PUBLISHED
CVSS 9.300000190734863 CRITICAL
Mattermost Server uses weak hashing for OAuth, email verification tokens and invitations in github.com/mattermost/mattermost-server
Risk Scores
CVSS v4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| github.com | mattermost/mattermost-server | 3.8.0+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-jxc4-w54c-qv5r advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-18917 advisory
- https://github.com/mattermost/mattermost/commit/247cd1e51a8c943628dc650e87e794b06aad4c2b url
- https://github.com/mattermost/mattermost/commit/b74e85653660525d351d090a1e1874ae933bcbc8 url
- https://mattermost.com/security-updates url