CVE-2026-0613: The Librarian contains an internal port scanning vulnerability, facilitated by the `web_fetch` tool, which can

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HIGH 7.5REMOTEMITIGATE

CVE-2026-0613 is a high-severity flaw (CVSS 7.5) affecting the librarian. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-01-16
Last modified	2026-06-17

Publisher (CNA): CERT/CC · Vendor: thelibrarian

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-16 13:16 UTCPublished CVE record published
2026-06-17 10:11 UTCUpdated Record last modified

thelibrarian the librarian MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy the-librarian || rpm -q the-librarian || the-librarian --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-0613?

the librarian: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-0613 being exploited?

CVE-2026-0613 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-0613 affect?

CVE-2026-0613 affects the librarian. Severity is high (CVSS 7.5). 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

How urgent is CVE-2026-0613?

Priority 40/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-0616 HIGH 7.5 MITIGATE TheLibrarians web_fetch tool can be used to retrieve the Adminer interface content, which can then be used to
CVE-2026-0615 HIGH 7.3 MITIGATE The Librarian `supervisord` status page can be retrieved by the `web_fetch` tool, which can be used to retriev
CVE-2026-0612 HIGH 7.5 MITIGATE The Librarian contains a information leakage vulnerability through the `web_fetch` tool, which can be used to

References

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