Description
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.
Published: 2026-08-14
Score: 8.7 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Fri, 14 Aug 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Semaphoreui
Semaphoreui semaphore
Vendors & Products Semaphoreui
Semaphoreui semaphore

Fri, 14 Aug 2026 21:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Semaphore prior to version 2.18.20 OS Command Injection via git_url Repository Handling
Weaknesses CWE-88
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Semaphoreui Semaphore
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-14T21:06:36.069Z

Reserved: 2026-08-13T15:15:35.896Z

Link: CVE-2026-73682

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-14T21:17:58.033

Modified: 2026-08-14T21:17:58.033

Link: CVE-2026-73682

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-14T22:30:03Z

Weaknesses