CVE-2026-0612 CVE-2026-0612

High 7.5 Published 16 Jan 2026 Updated 16 Jan 2026

Attackers can exploit the web_fetch tool to proxy requests and leak information via The Librarian infrastructure.

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-2026-0612?

CVE-2026-0612 is a high-severity server-side request forgery vulnerability in TheLibrarian.io, published on 16 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Librarian contains a information leakage vulnerability through the `web_fetch` tool, which can be used to retrieve arbitrary external content provided by an attacker, which can be used to proxy requests through The Librarian infrastructure. The vendor has fixed the vulnerability in all versions of TheLibrarian.

Which versions are affected by CVE-2026-0612?

It affects 1 product.

Products include Thelibrarian the Librarian.

How do I fix CVE-2026-0612?

No fix has been published for CVE-2026-0612 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-2026-0612 being exploited?

There is no known exploitation of CVE-2026-0612 in the wild and no public exploit code.

Sources

Also known as GHSA-vhwm-c99c-xhcp.