What is CVE-2026-0612?

CVE-2026-0612 is a high-severity vulnerability in Thelibrarian The Librarian, classified under CWE-497: EXPOSURE OF SENSITIVE SYSTEM INFORMATION TO AN UNAUTHORIZED CONTROL SPHERE. CVSS score: 7.5/10. Published 2026-01-16.

How severe is CVE-2026-0612?

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

Vulnerability in Thelibrarian The Librarian

CVE-2026-0612

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.

Published 2026-01-16 · last modified 2026-06-17.

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.

EPSS exploit prediction

EPSS: 0.004 (29.3th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Affected products

Thelibrarian The Librarian
Thelibrarian Thelibrarian.io — versions 0

References

mindgard.ai/blog/thelibrarian-ios-ai-security- (Third Party Advisory)
thelibrarian.io/ (Product)

Frequently asked questions

What is CVE-2026-0612?: CVE-2026-0612 is a high-severity vulnerability in Thelibrarian The Librarian, classified under CWE-497: EXPOSURE OF SENSITIVE SYSTEM INFORMATION TO AN UNAUTHORIZED CONTROL SPHERE. CVSS score: 7.5/10. Published 2026-01-16.
How severe is CVE-2026-0612?: High severity. CVSS v3 base score is 7.5 out of 10.