CVE-2026-16194

MEDIUM

zhayujie CowAgent web_fetch.py WebFetch.execute server-side request forgery

Title source: cna
STIX 2.1

Description

A vulnerability was determined in zhayujie CowAgent up to 2.1.1. This affects the function WebFetch.execute of the file agent/tools/web_fetch/web_fetch.py. Executing a manipulation of the argument url can lead to server-side request forgery. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.1.2 is able to mitigate this issue. This patch is called ea47f3097eed4f8295c4cb3d76ecb97e0f43d632. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

References (9)

Core 9
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-380009 | zhayujie CowAgent web_fetch.py WebFetch.execute server-side request forgery
https://vuldb.com/vuln/380009
Signature, Permissions Required signature permissions-required
VDB-380009 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/380009/cti
Third Party Advisory third-party-advisory
CVE-2026-16194 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-16194
Third Party Advisory third-party-advisory
Submit #857620 | zhayujie CowAgent 2.1.1 Server-Side Request Forgery (CWE-918)
https://vuldb.com/submit/857620
Exploit exploit issue-tracking
https://github.com/zhayujie/CowAgent/issues/2889

Scores

CVSS v3 6.3
EPSS 0.0033
EPSS Percentile 25.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-918
Status published
Products (3)
zhayujie/CowAgent 2.1.0
zhayujie/CowAgent 2.1.1
zhayujie/CowAgent 2.1.2
Published Jul 18, 2026
Tracked Since Jul 19, 2026