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CVE PROGRAM SOURCE RECORD9.9 Critical

CVE-2026-73294

Semaphore U: OS Command Injection

Description

Semaphore UI is a web interface for managing DevOps tools. Prior to 2.18.17 and 2.19.5-beta2, repository git_url handling passes an attacker-controlled --upload-pack option to CmdGitClient.GetLastRemoteCommitHash through POST /api/project/{id}/repositories and scheduled commit-hash polling, allowing a project Manager or Owner to execute arbitrary OS commands in the Semaphore server process. This issue is fixed in versions 2.18.17 and 2.19.5-beta2.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

semaphoreui semaphore

  • < 2.18.17affected
  • >= 2.19.0-alpha3, < 2.19.5-beta2affected

References