CVE-2026-33623
PinchTab is a standalone HTTP server that gives AI agents direct control over a Chrome browser.
Published Mar 26, 2026 · updated Jun 17, 2026 · pinchtab pinchtab
PinchTab is a standalone HTTP server that gives AI agents direct control over a Chrome browser. PinchTab contains a Windows-only command injection issue in the orphaned Chrome cleanup path. When an instance is stopped, the Windows cleanup routine builds a PowerShell string using a derived from the profile path. In , that string interpolation escapes backslashes but does not safely neutralize other PowerShell metacharacters. If an attacker can launch an instance using a crafted profile name and then trigger the cleanup path, they may be able to execute arbitrary PowerShell commands on the Windows host in the security context of the PinchTab process user. This is not an unauthenticated internet RCE. It requires authenticated, administrative-equivalent API access to instance lifecycle endpoints, and the resulting command execution inherits the permissions of the PinchTab OS user rather than bypassing host privilege boundaries. Version 0.8.5 contains a patch for the issue.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Mar 26, 2026 · NIST NVD
Detected
PinchTab is a standalone HTTP server that gives AI agents direct control over a Chrome browser. PinchTab contains a Windows-only command injection issue in the orphaned Chrome cleanup path. When an instance is stopped, the Windows cleanup routine builds a PowerShell string using a derived from the profile path. In , that string interpolation escapes backslashes but does not safely neutralize other
Jun 17, 2026 · NIST NVD
Updated
PinchTab is a standalone HTTP server that gives AI agents direct control over a Chrome browser. PinchTab contains a Windows-only command injection issue in the orphaned Chrome cleanup path. When an instance is stopped, the Windows cleanup routine builds a PowerShell string using a derived from the profile path. In , that string interpolation escapes backslashes but does not safely neutralize other
Affected
- cpe pinchtab/pinchtabversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-33623
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-33623
PinchTab is a standalone HTTP server that gives AI agents direct control over a Chrome browser. PinchTab contains a Windows-only command injection issue in the orphaned Chrome cleanup path. When an instance is stopped, the Windows cleanup routine builds a PowerShell `-Co
nvd.nist.gov