Incomplete Cleanup Vulnerability in poco-ai poco-agent Component by poco-ai
CVE-2026-19019

6.3MEDIUM

Key Information:

Vendor

Poco-ai

Status
Poco-agent
Vendor
CVE Published:
6 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-19019?

A significant security flaw has been identified in the poco-ai poco-agent, specifically within the WorkspaceManager._setup_session_persistence function of the Claude File Handler in executor/app/core/workspace.py. This vulnerability leads to incomplete cleanup of session data, potentially allowing attackers to exploit the flaw remotely. While the complexity of successfully executing an attack remains high, public knowledge of the exploit poses severe risks to users of the affected version.

Affected Version(s)

poco-agent 0.5.0

poco-agent 0.5.1

poco-agent 0.5.2

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-2026-19019 - Proof of Concept

CVE-2026-19019 - Proof of Concept

References

https://vuldb.com/vuln/386419
vdb-entrytechnical-description
https://vuldb.com/vuln/386419/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-19019
third-party-advisory

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

JondaChen (VulDB User)
.