Is CVE-2026-73294 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-73294?

CVE-2026-73294 has a CVSS v3 severity of CRITICAL (9.9).

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CVE-2026-73294

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.