Denial of Service Vulnerability in zhayujie CowAgent Web Console
CVE-2026-108681

5.3MEDIUM

Key Information:

Vendor

Zhayujie

Status
Cowagent
Vendor
CVE Published:
11 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-108681?

A vulnerability has been found in zhayujie CowAgent that impacts the Web Console component, specifically in the web_channel.py file. This security flaw allows attackers to manipulate the session_id argument, leading to a denial-of-service condition. Attackers can exploit this vulnerability remotely, which poses a significant risk to systems using affected versions. Although version 2.1.7 implements a partial mitigation with a 512MB limit on request bodies, the exploit has already been publicly released, increasing the urgency for users to secure their installations.

Affected Version(s)

CowAgent 2.1.0

CowAgent 2.1.1

CowAgent 2.1.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-108681 - Proof of Concept

References

https://vuldb.com/vuln/416389
vdb-entrytechnical-description
https://vuldb.com/vuln/416389/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-108681
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

hackerguopeng (VulDB User)
VulDB CNA Team
.