---
id: CVE-2026-16129
title: A vulnerability has been found in princezuda SafestClaw up to 4.2.4
summary: >-
  A vulnerability has been found in princezuda SafestClaw up to 4.2.4. This
  vulnerability affects the function ShellAction._validate_command of the file
  src/safestclaw/actions/shell.py of the component Built-in Web Interface. Such
  manipula…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'
cwe:
  - CWE-183
  - CWE-184
published: '2026-07-18'
updated: '2026-07-18'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-16129'
references:
  - url: 'https://github.com/princezuda/safestclaw/'
    label: cna@vuldb.com
  - url: 'https://github.com/princezuda/safestclaw/issues/59'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-16129'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/856882'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/379845'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/379845/cti'
    label: cna@vuldb.com
tags:
  - nvd
ingestedAt: '2026-07-19T05:29:21.625Z'
epss: 0.00323
epssPercentile: 0.22642
---

## Overview

A vulnerability has been found in princezuda SafestClaw up to 4.2.4. This vulnerability affects the function ShellAction._validate_command of the file src/safestclaw/actions/shell.py of the component Built-in Web Interface. Such manipulation leads to incomplete blacklist. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The presence of this vulnerability remains uncertain at this time. The project maintainer explains: "On paper you're correct, this is a vulnerability. In practice, nothing your AI generated shows how it makes users vulnerable. It's open source. Someone can mod the shell allow list or remove that system. Present an actual poc that shows a threat to users."

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.