CVE-2026-73292: semaphoreui semaphore Cross-Site Request Forgery (CSRF)

Vulnerability summary

CVE-2026-73292 is a high (CVSS 8.3) Cross-Site Request Forgery (CSRF) vulnerability in semaphoreui semaphore. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 13% of scored vulnerabilities.

Timeline

1. 12-08-2026
   PublishedVulnerability first disclosed.
2. 12-08-2026
   Last modifiedVulnerability information updated.

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.

• CWE-352Cross-Site Request Forgery (CSRF)The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.
• CWE-620Unverified Password ChangeWhen setting a new password for a user, the product does not require knowledge of the original password, or using another form of authentication.