OS Command Injection in Paperclip - #VU141307
Published: August 8, 2026
Vulnerability identifier: #VU141307
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to command injection in the Execution Workspace lifecycle cleanupCommand handling in workspace-runtime.ts when processing a crafted PATCH request to /api/execution-workspaces/:id and later archiving the workspace. A remote attacker can inject a crafted cleanupCommand value to execute arbitrary code.
In the default local_trusted deployment mode, no authentication is required, and exploitation occurs when the workspace cleanup routine invokes the supplied command through a shell.
Affected software
Paperclip
Remediation
Install security update from vendor's website.
Paperclip - update to 2026.416.0