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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.

PUBLISHED Reserved 2026-07-09 | Published 2026-07-10 | Updated 2026-07-10 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:O/RC:C
MEDIUM: 5.4CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:O/RC:C
5.5AV:N/AC:L/Au:S/C:N/I:P/A:P/E:ND/RL:OF/RC:C

Problem types

Path Traversal

Product status

2.0
affected

2.1.0
affected

2.1.2
unaffected

Timeline

2026-07-09:Advisory disclosed
2026-07-09:VulDB entry created
2026-07-09:VulDB entry last update

Credits

Eric-x (VulDB User) reporter

References

github.com/zhayujie/CowAgent/issues/2873 exploit

vuldb.com/vuln/377274 (VDB-377274 | zhayujie CowAgent Skill Installation service.py _add_package path traversal) vdb-entry technical-description

vuldb.com/vuln/377274/cti (VDB-377274 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-15331 (CVE-2026-15331 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/853104 (Submit #853104 | zhayujie CowAgent <= 2.1.0 Improper Limitation of a Pathname to a Restricted Directory (CWE-22)) third-party-advisory

github.com/zhayujie/CowAgent/issues/2873 issue-tracking

github.com/zhayujie/CowAgent/pull/2886 issue-tracking patch

github.com/...ommit/e85290cddcbb5ffc9c235927f4c92e5b4c3ec264 patch

github.com/zhayujie/CowAgent/releases/tag/2.1.2 patch

github.com/zhayujie/CowAgent/ product

cve.org (CVE-2026-15331)

nvd.nist.gov (CVE-2026-15331)

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