Detections
Analytics

SCA: security update for github.com/pinchtab/pinchtab/cmd/pinchtab (GHSA-p8mm-644p-phmh)

high Tenable Self-Hosted Container Security Plugin ID 439178

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - PinchTab is a standalone HTTP server that gives AI agents direct control over a Chrome browser. PinchTab
 `v0.8.4` 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 `-Command` string using a `needle`
 derived from the profile path. In `v0.8.4`, 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. (CVE-2026-33623)

Solution

Update the github.com/pinchtab/pinchtab/cmd/pinchtab library and its related packages to version 0.8.5 or later.

See Also

https://github.com/advisories/GHSA-p8mm-644p-phmh

Plugin Details

Severity: High

ID: 439178

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 3/25/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.88

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:M/C:C/I:C/A:C

CVSS Score Source: CVE-2026-33623

CVSS v3

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/24/2026

Vulnerability Publication Date: 3/24/2026

Reference Information

CVE: CVE-2026-33623