CVE-2026-16194

Received Received - Intake

Server-Side Request Forgery in CowAgent Agent

Publication date: 2026-07-18

Last updated on: 2026-07-18

Assigner: VulDB

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-07-18

Last Modified

2026-07-18

Generated

2026-07-19

AI Q&A

2026-07-19

EPSS Evaluated

N/A

NVD

CVE-2026-16194

EUVD

EUVD-2026-45404

Affected Vendors & Products

Vendor	Product	Version / Range
zhayujie	cowagent	to 2.1.1 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-918	The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Attack-Flow Graph

Executive Summary

This vulnerability is a server-side request forgery (SSRF) in zhayujie CowAgent up to version 2.1.1. It exists in the WebFetch.execute function of the file agent/tools/web_fetch/web_fetch.py. An attacker can manipulate the url argument to force the server to make unauthorized requests. The issue has been publicly disclosed and a patch is available in version 2.1.2.

Detection Guidance

To detect this vulnerability, check if CowAgent versions up to 2.1.1 are installed. Inspect network logs for unusual outbound requests or server-side request forgery attempts. Monitor for unexpected URL handling in agent/tools/web_fetch/web_fetch.py. Verify if the patch ea47f3097eed4f8295c4cb3d76ecb97e0f43d632 is applied.

Impact Analysis

An attacker could exploit this to send requests to internal systems, potentially accessing sensitive data or services. This could lead to data breaches, unauthorized actions, or further network compromise depending on the server's configuration and network access.

Compliance Impact

This vulnerability allows server-side request forgery (SSRF) via manipulated URL arguments, which could enable unauthorized network access or data exfiltration. Such risks may impact compliance with GDPR (data protection) or HIPAA (health data security) by exposing sensitive information or violating access controls.

Mitigation Strategies

Upgrade CowAgent to version 2.1.2 or later to address the server-side request forgery vulnerability in the WebFetch.execute function.

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