What is CVE-2026-0613?

CVE-2026-0613 is a high-severity vulnerability in Thelibrarian The Librarian, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.5/10. Published 2026-01-16.

How severe is CVE-2026-0613?

High severity. CVSS v3 base score is 7.5 out of 10.

SSRF in Thelibrarian The Librarian

CVE-2026-0613

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.

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.004 (29.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Thelibrarian The_librarian
Thelibrarian Thelibrarian.io — versions 0

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

cret@cert.org (Third Party Advisory)
cret@cert.org (Product)

Frequently asked questions

What is CVE-2026-0613?: CVE-2026-0613 is a high-severity vulnerability in Thelibrarian The Librarian, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.5/10. Published 2026-01-16.
How severe is CVE-2026-0613?: High severity. CVSS v3 base score is 7.5 out of 10.