SemaphoreUI Semaphore up to 2.18.19 Git URL git_url os command injection

Summaryinfo

A vulnerability was found in SemaphoreUI Semaphore up to 2.18.19. It has been declared as problematic. This issue affects some unknown processing of the component Git URL Handler. Executing a manipulation of the argument git_url can lead to os command injection. This vulnerability is registered as CVE-2026-73682. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in SemaphoreUI Semaphore up to 2.18.19. It has been declared as problematic. This vulnerability affects some unknown processing of the component Git URL Handler. The manipulation of the argument git_url with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability was named CVE-2026-73682 since 08/13/2026. The exploitation appears to be easy. The attack can be initiated remotely. The exploitation requires an enhanced level of successful authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading to version 2.18.20 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• SemaphoreUI

Name

• Semaphore

Version

• 2.18.0
• 2.18.1
• 2.18.2
• 2.18.3
• 2.18.4
• 2.18.5
• 2.18.6
• 2.18.7
• 2.18.8
• 2.18.9
• 2.18.10
• 2.18.11
• 2.18.12
• 2.18.13
• 2.18.14
• 2.18.15
• 2.18.16
• 2.18.17
• 2.18.18
• 2.18.19

CPE 2.3info

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• 🔒
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CPE 2.2info

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• 🔒

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Threat Intelligenceinfo

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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