CVE-2026-72594 lobehub lobe-chat - Stored Cross-Site Scripting via Unrestricted SVG Avatar Upload

High 7.6 Published Updated

Attackers can inject JavaScript via SVG avatars, enabling session hijacking or malicious actions in lobe-chat.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-72594?

CVE-2026-72594 is a high-severity cross-site scripting vulnerability in lobehub lobe-chat, published on 10 Aug 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A stored cross-site scripting (XSS) vulnerability in lobehub/lobe-chat through v2.2.13 allows a low-privileged authenticated user to inject arbitrary JavaScript into the application by uploading a crafted SVG file as a user avatar.

Weakness: CWE-79

Which versions are affected by CVE-2026-72594?

How do I fix CVE-2026-72594?

No fix has been published for CVE-2026-72594 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-72594 being exploited?

There is no known exploitation of CVE-2026-72594 in the wild and no public exploit code.

Sources

Also known as GHSA-cjxw-hmxq-h489.

Is CVE-2026-72594 in your software?

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