Semaphoreui vulnerabilities
4 vulnerabilities
Known vulnerabilities in Semaphoreui products, newest first, with CVSS severity, EPSS, KEV listings and ransomware use, across 2 products.
Products
2- Semaphore3 vulnerabilities
- Semaphore UI1 vulnerabilities
CVE-2026-112305semaphoreuisemaphore ui
EPSS score0.56%
Semaphore UI through 2.19.16 contains a remote code execution vulnerability that allows users with the task_runner role to override protected Ansible variables by supplying arbitrary keys in the task environment JSON. Attackers can POST tasks setting ansible_ssh_common_args with a ProxyCommand or ansible_connection=local to execute commands as the Semaphore server user, exposing encryption keys, SSH keys and stored secrets.CVE-2026-73292github.com/semaphoreuisemaphore+1EPSS score0.23%
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.CVE-2026-73293github.com/semaphoreuisemaphore+1EPSS score0.57%
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.CVE-2026-91994semaphoreuisemaphoreEPSS score0.41%
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.