{"id":"CVE-2026-73294","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-73294","summary":"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…","details":"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.","published":"2026-08-12T16:17:22.640","modified":"2026-08-12T16:17:22.640","cvss":{"score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/semaphoreui/semaphore/commit/7e8a9434bd81b82cf42220151c74801ea97542d6","label":"semaphoreui/semaphore@7e8a943"},"references":[{"type":"WEB","url":"https://github.com/semaphoreui/semaphore/commit/7e8a9434bd81b82cf42220151c74801ea97542d6"},{"type":"WEB","url":"https://github.com/semaphoreui/semaphore/commit/a7a7a33a64aea382a0726b3722856f298663eacf"},{"type":"WEB","url":"https://github.com/semaphoreui/semaphore/security/advisories/GHSA-xp7j-h7jc-4w8p"},{"type":"WEB","url":"https://github.com/semaphoreui/semaphore/tree/v2.18.17"},{"type":"WEB","url":"https://github.com/semaphoreui/semaphore/tree/v2.19.5-beta2"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T16:17:22.640"}}