CVE-2026-73294
CRITICAL
9,9
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high
Description
AI Translation Available
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.
78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
StableCommon Consequences
Security Scopes Affected:
Confidentiality
Integrity
Availability
Non-Repudiation
Potential Impacts:
Execute Unauthorized Code Or Commands
Dos: Crash, Exit, Or Restart
Read Files Or Directories
Modify Files Or Directories
Read Application Data
Modify Application Data
Hide Activities
Applicable Platforms
Technologies:
Not Technology-Specific, AI/ML, Web Server
88
Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
DraftCommon Consequences
Security Scopes Affected:
Confidentiality
Integrity
Availability
Other
Potential Impacts:
Execute Unauthorized Code Or Commands
Alter Execution Logic
Read Application Data
Modify Application Data
Applicable Platforms
Languages:
Not Language-Specific, PHP
https://github.com/semaphoreui/semaphore/security/advisories/GHSA-xp7j-h7jc-4w8p
https://github.com/semaphoreui/semaphore/commit/7e8a9434bd81b82cf42220151c74801…
https://github.com/semaphoreui/semaphore/commit/a7a7a33a64aea382a0726b3722856f2…
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