Injection Vulnerability in Foundation Agents MetaGPT by Unknown Vendor
CVE-2026-4516

5.3MEDIUM

Key Information:

Vendor

Foundation Agents

Status
Metagpt
Vendor
CVE Published:
21 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-4516?

A significant injection vulnerability exists in Foundation Agents' MetaGPT before version 0.8.1, specifically within the unknown code of the file metagpt/actions/di/write_analysis_code.py, related to the DataInterpreter component. This flaw allows remote attackers to manipulate code execution, potentially leading to unauthorized access or control of the affected system. The exploit for this vulnerability has been made public, raising concerns for users who have not yet patched their installations. Notably, attempts to inform the vendor about this security issue prior to its public disclosure went unanswered.

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Affected Version(s)

MetaGPT 0.8.0

MetaGPT 0.8.1

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-2026-4516 - Proof of Concept

References

https://vuldb.com/?id.352081
vdb-entry
https://vuldb.com/?ctiid.352081
signaturepermissions-required
https://vuldb.com/?submit.773930
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

Goku (VulDB User)
VulDB
JSON
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