5.5
MEDIUM CVSS 2.0
CVE-2026-15331
zhayujie CowAgent Skill Installation service.py _add_package path traversal
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.

INFO

Published Date :

July 10, 2026, 5:16 a.m.

Last Modified :

July 10, 2026, 5:16 a.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2026-15331 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
CVSS 4.0 MEDIUM [email protected]
Solution
Upgrade zhayujie CowAgent to version 2.1.2 or later to fix the path traversal vulnerability.
  • Upgrade zhayujie CowAgent to version 2.1.2.
  • Apply the patch e85290cddcbb5ffc9c235927f4c92e5b4c3ec264.
  • Upgrade the affected component.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-15331 is associated with the following CWEs:

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-15331 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-15331 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Jul. 10, 2026

    Action Type Old Value New Value
    Added Affected [{'cpes': ['cpe:2.3:a:zhayujie:cowagent:*:*:*:*:*:*:*:*'], 'vendor': 'zhayujie', 'modules': ['Skill Installation Handler'], 'product': 'CowAgent', 'versions': [{'status': 'affected', 'version': '2.0'}, {'status': 'affected', 'version': '2.1.0'}, {'status': 'unaffected', 'version': '2.1.2'}]}]
    Added 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.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
    Added CVSS V2 (AV:N/AC:L/Au:S/C:N/I:P/A:P)
    Added CWE CWE-22
    Added Reference https://github.com/zhayujie/CowAgent/
    Added Reference https://github.com/zhayujie/CowAgent/commit/e85290cddcbb5ffc9c235927f4c92e5b4c3ec264
    Added Reference https://github.com/zhayujie/CowAgent/issues/2873
    Added Reference https://github.com/zhayujie/CowAgent/pull/2886
    Added Reference https://github.com/zhayujie/CowAgent/releases/tag/2.1.2
    Added Reference https://vuldb.com/cve/CVE-2026-15331
    Added Reference https://vuldb.com/submit/853104
    Added Reference https://vuldb.com/vuln/377274
    Added Reference https://vuldb.com/vuln/377274/cti
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.