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TI-2026-13535 Aliases CVE-2026-16194GHSA-wcfc-xp4r-c7rv

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

Priority MEDIUM 57CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00465 40th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed CowAgent (zhayujie): 2.1.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
zhayujieCowAgent2.1.0; 2.1.12.1.2Patch availableCNA
  • CowAgent Vendorzhayujie Affected 2.1.0; 2.1.1 Fixed in 2.1.2 Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:zhayujie:cowagent:*:*:*:*:*:*:*:*——zhayujie
  • cpe:2.3:a:zhayujie:cowagent:*:*:*:*:*:*:*:* Versions — — ·zhayujie

Remediation

  • Fix · CNA CowAgent (zhayujie) Fixed in 2.1.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-16194
  2. 2026-10-03 Alias added: GHSA-wcfc-xp4r-c7rv

References

Exploit 1

Patch 3

Other 1

  • TI-2026-12902 zhayujie CowAgent Vision Tool vision.py _download_to_data_url server-side request forgery CVSS 4.0MEDIUM 6.9
  • TI-2026-12400 zhayujie chatgpt-on-wechat CowAgent wx Endpoint common.py verify_server missing authentication CVSS 4.0MEDIUM 6.9
  • TI-2026-08952 zhayujie chatgpt-on-wechat Bash Tool bash.py _get_safety_warning os command injection CVSS 4.0MEDIUM 6.9
  • TI-2026-05370 zhayujie chatgpt-on-wechat CowAgent Administrative HTTP Endpoint missing authentication CVSS 4.0MEDIUM 6.9
  • TI-2026-05261 zhayujie chatgpt-on-wechat CowAgent API Memory Content Endpoint service.py dispatch path traversal CVSS 4.0MEDIUM 6.9
  • TI-2026-70803 Denial of service in zhayujie CowAgent Markdown rendering CVSS 4.0MEDIUM 5.3
See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences