CVE-2026-16075 AstrBotDevs AstrBot session-listing Endpoint open_api.py OpenApiRoute.get_chat_sessions authorization

Medium 5.3 Published Updated

Attackers can bypass authorization to list chat sessions in AstrBot by manipulating the Username argument, exposing user data.

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-2026-16075?

CVE-2026-16075 is a medium-severity authentication bypass vulnerability in AstrBotDevs AstrBot, published on 18 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A flaw has been found in AstrBotDevs AstrBot up to 4.25.5. This vulnerability affects the function OpenApiRoute.get_chat_sessions of the file astrbot/dashboard/routes/open_api.py of the component session-listing Endpoint. This manipulation of the argument Username causes authorization bypass. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-639, CWE-285

Which versions are affected by CVE-2026-16075?

How do I fix CVE-2026-16075?

No fix has been published for CVE-2026-16075 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-16075 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16075 exists.

Sources

Also known as GHSA-p8fw-8mf8-rwq8.

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