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CVE-2026-16129— princezuda SafestClaw Built-in Web shell.py ShellAction._validate_command incomplete blacklist

Quick assessment

Affected
princezuda SafestClaw
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Ryan S SafestClaw是Ryan S个人开发者的一个 OpenClaw 的替代方案。 Ryan S SafestClaw 4.2.0版本、4.2.1版本、4.2.2版本、4.2.3版本和4.2.4版本存在输入验证错误漏洞，该漏洞源于文件src/safestclaw/actions/shell.py中的ShellAction._validate_command函数导致不完整的黑名单，攻击者可通过本地方式利用。

CVSS 5.3 · Medium EPSS 0.32% · P23

Affected Version Matrix 5

VendorProduct Version RangeStatus
princezuda SafestClaw 4.2.0 affected
4.2.1 affected
4.2.2 affected
4.2.3 affected
4.2.4 affected
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I. Basic Information for CVE-2026-16129

Vulnerability Information
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Vulnerability Title
princezuda SafestClaw Built-in Web shell.py ShellAction._validate_command incomplete blacklist
Source: CVE Program / CVE List V5
Vulnerability Description
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."
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
不完整的黑名单
Source: CVE Program / CVE List V5
Vulnerability Title
Ryan S SafestClaw 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Ryan S SafestClaw是Ryan S个人开发者的一个 OpenClaw 的替代方案。 Ryan S SafestClaw 4.2.0版本、4.2.1版本、4.2.2版本、4.2.3版本和4.2.4版本存在输入验证错误漏洞，该漏洞源于文件src/safestclaw/actions/shell.py中的ShellAction._validate_command函数导致不完整的黑名单，攻击者可通过本地方式利用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
princezuda SafestClaw 4.2.0 cpe:2.3:a:princezuda:safestclaw:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-16129

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

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III. Intelligence Information for CVE-2026-16129

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Proof of Concept for CVE-2026-16129 (1)

IV. Related Vulnerabilities

Same weakness: CWE-184

V. Comments for CVE-2026-16129

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