CVE-2026-24130: Moonraker is a Python web server providing API access to Klipper 3D printing firmware

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2026-24130 is a medium-severity flaw (CVSS 5.3) affecting moonraker. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Moonraker is a Python web server providing API access to Klipper 3D printing firmware. In versions 0.9.3 and below, instances configured with the "ldap" component enabled are vulnerable to LDAP search filter injection techniques via the login endpoint. The 401 error response message can be used to determine whether or not a search was successful, allowing for brute force methods to discover LDAP entries on the server such as user IDs and user att

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-90, CWE-209
Published	2026-01-22
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: arksine

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

Am I affected?

Timeline

2026-01-22 23:15 UTCPublished CVE record published
2026-06-17 10:22 UTCUpdated Record last modified

arksine moonraker UPGRADE

Affected: < 0.10.0

Fixed in: 0.10.0

Safe to downgrade to: no unaffected older release

1. Check installed version

pip show moonraker

2. UPGRADE to 0.10.0

pip install --upgrade "moonraker>=0.10.0"

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-2026-24130?

moonraker: upgrade to 0.10.0. Exact commands for each OS are on this page.

Is CVE-2026-24130 being exploited?

CVE-2026-24130 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-2026-24130 affect?

CVE-2026-24130 affects moonraker. Severity is medium (CVSS 5.3). Moonraker is a Python web server providing API access to Klipper 3D printing firmware. In versions 0.9.3 and below, instances configured with the "ldap" component enabled are vulnerable to LDAP search filter injection techniques via the log

How urgent is CVE-2026-24130?

Priority 29/100. Remotely exploitable, no login, no user action

Software pages

Python vulnerabilities

References

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