CVE-2026-73294
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.
- CVSS 3.1
- 9.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 50% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-78, CWE-88
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-xp7j-h7jc-4w8p | Go | github.com/semaphoreui/semaphore | <0.0.0-20260704181911-7e8a9434bd81 | 0.0.0-20260704181911-7e8a9434bd81 |
| GO-2026-6435 | Go | github.com/semaphoreui/semaphore | <0.0.0-20260704181911-7e8a9434bd81 | 0.0.0-20260704181911-7e8a9434bd81 |
References
- https://github.com/semaphoreui/semaphore/commit/7e8a9434bd81b82cf42220151c74801ea97542d6
- https://github.com/semaphoreui/semaphore/commit/a7a7a33a64aea382a0726b3722856f298663eacf
- https://github.com/semaphoreui/semaphore/security/advisories/GHSA-xp7j-h7jc-4w8p
- https://github.com/semaphoreui/semaphore/tree/v2.18.17
- https://github.com/semaphoreui/semaphore/tree/v2.19.5-beta2