Incorrect Authorization in zhayujie CowAgent Affects Remote Users
CVE-2026-18992

5.3MEDIUM

Key Information:

Vendor

Zhayujie

Status
Cowagent
Vendor
CVE Published:
6 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-18992?

A vulnerability exists in the zhayujie CowAgent, specifically affecting the _select_tools function within the agent/evolution/executor.py component. This flaw allows remote attackers to manipulate the authorization process, leading to unauthorized access. Since the exploit details have been made public, organizations using the affected versions (up to 2.1.1) must take immediate action to mitigate potential risks.

Affected Version(s)

CowAgent 2.1.0

CowAgent 2.1.1

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-2026-18992 - Proof of Concept

References

https://vuldb.com/vuln/386368
vdb-entrytechnical-description
https://vuldb.com/vuln/386368/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-18992
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
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

ChenMarry (VulDB User)
.