CVE-2026-7223 BigSweetPotatoStudio HyperChat AI Proxy Middleware aiProxyMiddleware.mts fetch server-side request forgery

Medium 6.9 Published Updated

Remote attackers can exploit a server-side request forgery vulnerability in the HyperChat AI Proxy Middleware to access internal resources.

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-2026-7223?

CVE-2026-7223 is a medium-severity server-side request forgery vulnerability in BigSweetPotatoStudio HyperChat, published on 28 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability was identified in BigSweetPotatoStudio HyperChat up to 2.0.0-alpha.63. Affected by this issue is the function fetch of the file packages/core/src/http/aiProxyMiddleware.mts of the component AI Proxy Middleware. Such manipulation of the argument baseurl leads to server-side request forgery. The attack can be launched remotely. The exploit is publicly available and might be used. 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-2026-7223?

2 open source packages ship an affected version, including @dadigua/hyperchat.

PackageAffectedFixed in
@dadigua/hyperchat npmAll versions to 2.0.0-alpha.63None
@dadigua/hyperchat npmAll versions to 2.0.0-alpha.63None

How do I fix CVE-2026-7223?

No fix has been published for CVE-2026-7223 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-2026-7223 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7223 exists.

Sources

Also known as GHSA-r2jq-4h3x-rfj6.

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