Server-Side Request Forgery in Modelscope Agentscope by OpenAI
CVE-2026-6604

6.9MEDIUM

Key Information:

Vendor

Modelscope

Status
Agentscope
Vendor
CVE Published:
20 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-6604?

A vulnerability has been found in Modelscope Agentscope versions up to 1.0.18 that allows for a server-side request forgery attack. This issue is related to the handling of parameters in the function _parse_url/prepare_image/openai_audio_to_text within the Cloud Metadata Endpoint. Malicious actors can exploit this vulnerability by manipulating the image_url or audio_file_url arguments, potentially leading to unauthorized requests to internal services. The exploit code is publicly available, and despite early notifications to the vendor, there has been no response regarding a patch or mitigation strategy.

Affected Version(s)

agentscope 1.0.0

agentscope 1.0.1

agentscope 1.0.2

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-2026-6604 - Proof of Concept

References

https://vuldb.com/vuln/358239
vdb-entrytechnical-description
https://vuldb.com/vuln/358239/cti
signaturepermissions-required
https://vuldb.com/submit/792224
third-party-advisory

CVSS V4

Score:
6.9
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

Eric-f (VulDB User)
VulDB CNA Team
.