Semaphoreui Semaphore vulnerabilities

3 vulnerabilities

Known vulnerabilities in Semaphoreui Semaphore, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

8.3CVE-2026-73292github.com/semaphoreuisemaphore+1
EPSS score
0.23%
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 2.18.21.8.8CVE-2026-73293github.com/semaphoreuisemaphore+1
EPSS score
0.57%
Semaphore UI is a web interface for managing DevOps tools. Prior to 2.18.19 and from 2.19.0-alpha3 until 2.19.5-beta5, ProjectMiddleware and GetProjectOrGlobalRoleBySlug allow a project manager to use POST /api/project/{id}/roles to create a custom manager role with permission bitmask 15, overriding the built-in manager permissions and granting CanUpdateProject and CanManageProjectUsers owner capabilities. This issue is fixed in versions 2.18.19 and 2.19.5-beta5.7.1CVE-2026-91994semaphoreuisemaphore
EPSS score
0.41%
Semaphore UI through 2.19.12 exempts GET and HEAD requests from project resource permission checks in GetMustCanMiddleware. Attackers with guest or task_runner roles can read all project environments including plaintext secrets, credentials, and passwords via GET requests to the environment endpoint.