{"id":"CVE-2026-73294","title":"Semaphore UI is a web interface for managing DevOps tools","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 through POST /api/projec…","severity":"critical","cvss":9.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-78","CWE-88"],"vendor":"semaphoreui","product":"github.com/semaphoreui/semaphore","affected":["github.com/semaphoreui/semaphore < 0.0.0-20260704181911-7e8a9434bd81"],"patched":["github.com/semaphoreui/semaphore 0.0.0-20260704181911-7e8a9434bd81"],"published":"2026-08-12","updated":"2026-09-09","sourceUpdated":"2026-09-09T21:02:22.660","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73294","references":[{"url":"https://github.com/semaphoreui/semaphore/commit/7e8a9434bd81b82cf42220151c74801ea97542d6","label":"security-advisories@github.com"},{"url":"https://github.com/semaphoreui/semaphore/commit/a7a7a33a64aea382a0726b3722856f298663eacf","label":"security-advisories@github.com"},{"url":"https://github.com/semaphoreui/semaphore/security/advisories/GHSA-xp7j-h7jc-4w8p","label":"security-advisories@github.com"},{"url":"https://github.com/semaphoreui/semaphore/tree/v2.18.17","label":"security-advisories@github.com"},{"url":"https://github.com/semaphoreui/semaphore/tree/v2.19.5-beta2","label":"security-advisories@github.com"},{"url":"https://github.com/semaphoreui/semaphore/security/advisories/GHSA-xp7j-h7jc-4w8p","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73294"},{"url":"https://github.com/semaphoreui/semaphore"},{"url":"https://github.com/advisories/GHSA-xp7j-h7jc-4w8p"}],"tags":["nvd","osv","go","ghsa"],"epss":0.00569,"epssPercentile":0.45619,"aliases":["GHSA-xp7j-h7jc-4w8p","CVE-2026-73682"],"ecosystem":"go","ingestedAt":"2026-09-08T19:08:49.635Z","slug":"CVE-2026-73294","body":"## Overview\n\nSemaphore 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-73294)\n\nAffected packages:\n\n- `github.com/semaphoreui/semaphore < 0.0.0-20260704181911-7e8a9434bd81`\n\nPatched in:\n\n- `github.com/semaphoreui/semaphore 0.0.0-20260704181911-7e8a9434bd81`\n\nSource: https://osv.dev/vulnerability/GHSA-xp7j-h7jc-4w8p","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":54.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}