CVE-2026-33623

Source
https://cve.org/CVERecord?id=CVE-2026-33623
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33623.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-33623
Aliases
Downstream
Related
Published
2026-03-26T20:47:05.652Z
Modified
2026-04-10T05:42:52.198012Z
Severity
  • 6.7 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L CVSS Calculator
Summary
PinchTab: OS Command Injection via Profile Name in Windows Cleanup Routine Enables Arbitrary Command Execution
Details

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.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33623.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-400",
        "CWE-78"
    ]
}
References

Affected packages

Git / github.com/pinchtab/pinchtab

Affected ranges

Type
GIT
Repo
https://github.com/pinchtab/pinchtab
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Database specific
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.8.5"
        }
    ]
}

Affected versions

v0.*
v0.1.0
v0.2.0
v0.3.0
v0.4.0
v0.5.0
v0.6.0
v0.6.1
v0.6.2
v0.6.3
v0.7.0
v0.7.6
v0.7.7
v0.7.8
v0.8.0
v0.8.1
v0.8.2
v0.8.3
v0.8.4

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33623.json"