Description
Semaphore UI is a web interface for managing DevOps tools. Prior to 2.18.21, the /api/users/{id}/password endpoint accepts a cross-site request using the authenticated user's semaphore session cookie without CSRF protection or current-password confirmation, allowing an unauthenticated attacker to change an administrator's or another user's password after user interaction. This issue is fixed in version 2.18.21.
Metrics
CVSS 3.1 8.3/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:LWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- Aug 12, 2026
- Last modified
- Oct 24, 2026
- NVD status
- Deferred