# CVE-2026-16194 — zhayujie CowAgent

> As of 2026-07-18, CVE-2026-16194 is a MEDIUM-severity vulnerability in zhayujie CowAgent, CVSS v3.1 6.3, EPSS 0.3% (25.1th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-16194 as of 2026-07-18; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-07-18

## What is CVE-2026-16194?

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.

The record classifies CVE-2026-16194 under weakness class [CWE-918](https://intel.threadlinqs.com/cwe/CWE-918). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 79 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 6.3 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C`)
- **CVSS v4.0 base score:** 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **EPSS (FIRST):** 0.3% probability of exploitation in the next 30 days, higher than 25.1% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4.2/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-07-18

## Is CVE-2026-16194 being exploited?

It currently carries a trending score of 36 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **zhayujie**: CowAgent

## How to fix CVE-2026-16194

No vendor patch reference has been recorded for CVE-2026-16194 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-16194

No threat campaign in the Threadlinqs corpus currently references CVE-2026-16194, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-07-20.

**Vendor advisory and patch**

- [github.com — issue tracking](https://github.com/zhayujie/CowAgent/pull/2900)
- [github.com — patch](https://github.com/zhayujie/CowAgent/commit/ea47f3097eed4f8295c4cb3d76ecb97e0f43d632)
- [github.com — patch (2.1)](https://github.com/zhayujie/CowAgent/releases/tag/2.1.2)

**Exploit and proof of concept**

- [github.com — exploit](https://github.com/zhayujie/CowAgent/issues/2889)

**Technical analysis**

- [vuldb.com — vdb entry](https://vuldb.com/vuln/380009)

**Third-party advisory**

- [vuldb.com — signature](https://vuldb.com/vuln/380009/cti)
- [vuldb.com — third party advisory](https://vuldb.com/cve/CVE-2026-16194)
- [vuldb.com — third party advisory (857620)](https://vuldb.com/submit/857620)

**Issue tracking and product pages**

- [github.com — product](https://github.com/zhayujie/CowAgent/)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-16194
Full detection coverage and IOCs for threats exploiting CVE-2026-16194 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp