CVE-2026-6111 FoundationAgents MetaGPT common.py decode_image server-side request forgery

Medium 5.3 Published Updated

Attackers can exploit a server-side request forgery flaw in MetaGPT's image decoding function to access internal resources or bypass security controls.

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

What is CVE-2026-6111?

CVE-2026-6111 is a medium-severity server-side request forgery vulnerability in FoundationAgents MetaGPT, published on 12 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A security flaw has been discovered in FoundationAgents MetaGPT up to 0.8.1. This impacts the function decode_image of the file metagpt/utils/common.py. The manipulation of the argument img_url_or_b64 results in server-side request forgery. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-918

Which versions are affected by CVE-2026-6111?

3 open source packages ship an affected version, including metagpt. It affects 1 product.

PackageAffectedFixed in
metagpt PyPIAll versions to 0.8.2None
metagpt PyPIAll versions to 0.8.2None
metagpt PyPIAll versions to 0.8.2None

Products include Deepwisdom Metagpt.

How do I fix CVE-2026-6111?

No fix has been published for CVE-2026-6111 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-2026-6111 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6111 exists.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-r5v8-c28h-f8r8, PYSEC-2026-2642.

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