Semaphore UI vulnerabilities
3 known CVE vulnerabilities in Semaphore UI, translated and rated.
- CVE-2026-73293High
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-2026-73294Critical
Semaphore UI before versions 2.18.17 and 2.19.5-beta2 improperly handles the git_url parameter in repositories, passing an attacker-controlled --upload-pack option to CmdGitClient.GetLastRemoteCommitHash. This allows a project Manager or Owner to execute arbitrary OS commands in the Semaphore server process.
- CVE-2026-73292High
Semaphore UI before version 2.18.21 has a CSRF vulnerability in the /api/users/{id}/password endpoint, allowing an unauthenticated attacker to change an administrator's or another user's password after user interaction. No CSRF protection or current-password confirmation is present.