CVE-2026-6605 modelscope agentscope Internal Service _common.py _get_bytes_from_web_url server-side request forgery

Medium 6.9 Published Updated

Remote attackers can exploit a server-side request forgery flaw in the agentscope library to access internal resources or bypass security controls.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-6605?

CVE-2026-6605 is a medium-severity server-side request forgery vulnerability in modelscope agentscope, published on 20 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A security flaw has been discovered in modelscope agentscope up to 1.0.18. This affects the function _get_bytes_from_web_url of the file src/agentscope/_utils/_common.py of the component Internal Service. Performing a manipulation results in server-side request forgery. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-918

Which versions are affected by CVE-2026-6605?

3 open source packages ship an affected version, including agentscope.

PackageAffectedFixed in
agentscope PyPIAll versions to 1.0.18None
agentscope PyPIAll versions to 1.0.18None
agentscope PyPIAll versions to 1.0.18None

How do I fix CVE-2026-6605?

No fix has been published for CVE-2026-6605 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2026-6605 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6605 exists.

Sources

Also known as GHSA-8ggf-r3vm-p3jc, PYSEC-2026-2330.

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