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CVE-2026-15331— zhayujie CowAgent Skill Installation service.py _add_package path traversal

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 2.1.0及之前版本存在路径遍历漏洞，该漏洞源于Skill Installation Handler组件中文件agent/skills/service.py的函数_add_url/_add_package对Name参数操纵不当，导致路径遍历。攻击者可能远程发起攻击。

CVSS 5.4 · Medium EPSS 0.56% · P44

Affected Version Matrix 3

VendorProduct Version RangeStatus
zhayujie CowAgent 2.0 affected
2.1.0 affected
2.1.2 unaffected
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I. Basic Information for CVE-2026-15331

Vulnerability Information
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Vulnerability Title
zhayujie CowAgent Skill Installation service.py _add_package path traversal
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was identified in zhayujie CowAgent up to 2.1.0. The affected element is the function _add_url/_add_package of the file agent/skills/service.py of the component Skill Installation Handler. The manipulation of the argument Name leads to path traversal. The attack may be initiated remotely. Upgrading to version 2.1.2 is sufficient to fix this issue. The identifier of the patch is e85290cddcbb5ffc9c235927f4c92e5b4c3ec264. It is advisable to upgrade the affected component.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
zhayujie CowAgent 路径遍历漏洞
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 2.1.0及之前版本存在路径遍历漏洞，该漏洞源于Skill Installation Handler组件中文件agent/skills/service.py的函数_add_url/_add_package对Name参数操纵不当，导致路径遍历。攻击者可能远程发起攻击。
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 2.0 cpe:2.3:a:zhayujie:cowagent:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-15331

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III. Intelligence Information for CVE-2026-15331

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Patches & Fixes for CVE-2026-15331 (2)

Proof of Concept for CVE-2026-15331 (1)

Other References for CVE-2026-15331 (1)

Same Patch Batch · zhayujie · 2026-07-10 · 4 CVEs total

CVE-2026-15330 7.3 HIGH zhayujie CowAgent Vision Tool vision.py _download_to_data_url server-side request forgery
CVE-2026-15332 6.3 MEDIUM zhayujie CowAgent Message Endpoint channel.py authorization
CVE-2026-15329 4.3 MEDIUM zhayujie CowAgent Browser Tool browser_tool.py BrowserTool._do_navigate information disclo

IV. Related Vulnerabilities

Same product: CowAgent
Same vendor: zhayujie
Same weakness: CWE-22

V. Comments for CVE-2026-15331

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