CVE-2026-111706 99AI through 4.3.0 Unauthenticated Information Disclosure via chatLog exportExcel

High 8.7 Published Updated

Unauthenticated attackers can export all user chat logs, including sensitive prompts and emails, from the 99AI web application.

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-2026-111706?

CVE-2026-111706 is a high-severity missing authorization vulnerability in vastxie 99AI, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

99AI through 4.3.0 contains a missing authentication vulnerability in the POST /api/chatLog/exportExcel route that allows unauthenticated attackers to export all users' chat logs. Attackers can send requests with controlled page, size, and optional email fields to download xlsx files containing usernames, emails, prompts, and AI answers.

Weakness: CWE-306

Which versions are affected by CVE-2026-111706?

How do I fix CVE-2026-111706?

No fix has been published for CVE-2026-111706 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-111706 being exploited?

There is no known exploitation of CVE-2026-111706 in the wild and no public exploit code.

Sources

Also known as GHSA-q472-g8p5-86fq.

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