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CVE-2026-18992— zhayujie CowAgent Self-Evolution Review Agent executor.py _select_tools authorization

Quick assessment

Affected
zhayujie CowAgent
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.

zhayujie CowAgent是zhayujie个人开发者开源的一个基于大模型的智能助理与可扩展Agent框架。 zhayujie CowAgent 2.1.1及之前版本存在授权问题漏洞，该漏洞源于Self-Evolution Review Agent组件中agent/evolution/executor.py文件的_select_tools函数存在错误操作，可能导致不正确的授权。

CVSS 6.3 · Medium EPSS 0.37% · P28

Affected Version Matrix 2

VendorProduct Version RangeStatus
zhayujie CowAgent 2.1.0 affected
2.1.1 affected
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I. Basic Information for CVE-2026-18992

Vulnerability Information
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Vulnerability Title
zhayujie CowAgent Self-Evolution Review Agent executor.py _select_tools authorization
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was detected in zhayujie CowAgent up to 2.1.1. This vulnerability affects the function _select_tools of the file agent/evolution/executor.py of the component Self-Evolution Review Agent. Performing a manipulation results in incorrect authorization. The attack is possible to be carried out remotely. The exploit is now public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
zhayujie CowAgent 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
zhayujie CowAgent是zhayujie个人开发者开源的一个基于大模型的智能助理与可扩展Agent框架。 zhayujie CowAgent 2.1.1及之前版本存在授权问题漏洞，该漏洞源于Self-Evolution Review Agent组件中agent/evolution/executor.py文件的_select_tools函数存在错误操作，可能导致不正确的授权。
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
zhayujie CowAgent 2.1.0 cpe:2.3:a:zhayujie:cowagent:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-18992

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III. Intelligence Information for CVE-2026-18992

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Proof of Concept for CVE-2026-18992 (1)

News Coverage for CVE-2026-18992 (1)

Other References for CVE-2026-18992 (3)

IV. Related Vulnerabilities

Same product: CowAgent
Same vendor: zhayujie
Same weakness: CWE-863

V. Comments for CVE-2026-18992

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