Remote Code Execution in piflow DeepAgents Chat Agent by CAS Big Data Lab
CVE-2026-109442

9.3CRITICAL

Key Information:

Vendor

Cas-bigdatalab

Status
Piflow
Vendor
CVE Published:
20 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-109442?

The piflow software, versions 2.0.0 and 2.0.1, features a significant remote code execution vulnerability within its DeepAgents chat agent. The endpoints for POST /chat and POST /chat/stream do not require authentication, allowing potential attackers to exploit this lack of security. They can instruct the chat agent to execute the exec_shell tool, which runs arbitrary commands without any user intervention or confirmatory checks. This flaw may expose sensitive environment variables, including LLM API keys and database credentials, putting users at risk.

Affected Version(s)

piflow 2.0.0 <= 2.0.1

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-2026-109442 - Proof of Concept

References

https://www.lasso.security/vulnerability-database/cve-202...
technical-descriptionexploit
https://github.com/cas-bigdatalab/piflow/blob/ad8d0108a54...
technical-description
https://github.com/cas-bigdatalab/piflow/blob/ad8d0108a54...
technical-description

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
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

Noy Pearl
Michael Sromin
Ophir Dror
.