Medium severity · published Jul 10, 2026
CVE-2026-15331
zhayujie CowAgent Skill Installation service.py _add_package path traversal
5.4
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
CowAgent · zhayujie
2.0; 2.1.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-15331
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-15331
github.com
https://github.com/zhayujie/CowAgent/
github.com
https://github.com/zhayujie/CowAgent/commit/e85290cddcbb5ffc9c235927f4c92e5b4c3ec264
github.com
https://github.com/zhayujie/CowAgent/issues/2873
github.com
https://github.com/zhayujie/CowAgent/pull/2886
github.com
https://github.com/zhayujie/CowAgent/releases/tag/2.1.2
vuldb.com
https://vuldb.com/cve/CVE-2026-15331
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