CVE-2026-73292: Semaphoreui Semaphore

High severity, CVSS 8.3. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Semaphoreui Semaphore: before 2.18.21 (fixed in 2.18.21)

Published 2026-08-12. Last modified 2026-09-09.