CVE-2026-0613 CVE-2026-0613

High 7.5 Published 16 Jan 2026 Updated 16 Jan 2026

Attackers can exploit the web_fetch tool to perform SSRF attacks, scanning internal Hertzner cloud environments and accessing internal services.

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-2026-0613?

CVE-2026-0613 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 an internal port scanning vulnerability, facilitated by the `web_fetch` tool, which can be used with SSRF-style behavior to perform GET requests to internal IP addresses and services, enabling scanning of the Hertzner cloud environment that TheLibrarian uses. The vendor has fixed the vulnerability in all affected versions.

Weakness: CWE-918

Which versions are affected by CVE-2026-0613?

It affects 1 product.

Products include Thelibrarian the Librarian.

How do I fix CVE-2026-0613?

No fix has been published for CVE-2026-0613 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-2026-0613 being exploited?

There is no known exploitation of CVE-2026-0613 in the wild and no public exploit code.

Sources

Also known as GHSA-76r3-qjqp-qqg4.