CVE-2026-73292
Semaphore UI: CSRF vulnerability on password change endpoint - No CSRF token or password confirmation
- Published
- Aug 12, 2026
- Updated
- Aug 12, 2026
- Assigning CNA
- GitHub_M
- Evidence observed
- Aug 18, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:LLow · next 30 days
- Percentile
- 14.5%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1Proof-of-concept exploit for CVE-2026-73292: CSRF attack on Semaphore UI password change endpoint, serving a malicious page that silently resets an authenticated user's password.
Responsible use
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