GitHub Advisoryadvisory · Go
GHSA-jxc4-w54c-qv5r Mattermost Server uses weak hashing for OAuth, email verification tokens and invitations
HIGH
Official page ↗
- Aliases
- CVE-2017-18917
- Ecosystem
- Go
- Packages
- github.com/mattermost/mattermost-server
- Severity
- High
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
- Weaknesses
- CWE-328
- Reviewed
- 2026-02-06
Affected packages
• Go github.com/mattermost/mattermost-server: < 3.7.5-0.20170421192444-247cd1e51a8c → fixed in 3.7.5-0.20170421192444-247cd1e51a8c
• Go github.com/mattermost/mattermost-server: >= 3.8.0, < 3.8.2 → fixed in 3.8.2
Description
An issue was discovered in Mattermost Server before 3.8.2 and 3.7.5. Weak hashing was used for e-mail invitations, OAuth, and e-mail verification tokens.
Related
Alias · CVE (1)
- CVE-2017-18917 An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. vulnerability
Weakness · CWE (1)
- CWE-328 Use of Weak Hash weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2017-18917 advisory
- https://github.com/mattermost/mattermost/commit/247cd1e51a8c943628dc650e87e794b06aad4c2b web
- https://github.com/mattermost/mattermost/commit/b74e85653660525d351d090a1e1874ae933bcbc8 web
- https://github.com/mattermost/mattermost package
- https://mattermost.com/security-updates web