What is CVE-2026-73682?

CVE-2026-73682 is a high-severity vulnerability in Semaphoreui Semaphore, classified under Argument Injection. CVSS score: 8.8/10. Published 2026-08-14.

How severe is CVE-2026-73682?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Semaphoreui Semaphore

CVE-2026-73682

Semaphore versions prior to 2.18.20 contain an OS command injection (argument injection) vulnerability in the repository git_url handling that allows authenticated users holding the Manager or Owner role on any project to achieve remote code execution on the Semaphore server host. Attackers can craft a malicious git_url value using git's --upload-pack= option to inject and execute arbitrary shell commands when the server processes repository operations using the default cmd_git client.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Semaphoreui Semaphore — versions 0

Weakness classification (CWE)

CWE-88 — Argument Injection

References

disclosure@vulncheck.com (product)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (technical-description)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-73682?: CVE-2026-73682 is a high-severity vulnerability in Semaphoreui Semaphore, classified under Argument Injection. CVSS score: 8.8/10. Published 2026-08-14.
How severe is CVE-2026-73682?: High severity. CVSS v3 base score is 8.8 out of 10.