CVE-2026-42137 — MEDIUM (6.5)

Q: How severe is CVE-2026-42137?

CVE-2026-42137 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-42137?

Check the references section above for vendor advisories and patch information. Affected products include: Getkirby Kirby.

Vulnerability Description

Kirby is an open-source content management system. Prior to versions 4.9.0 and 5.4.0, `pages.access/list` and `files.access/list` permissions are not consistently checked in the Panel and REST API. This issue has been patched in versions 4.9.0 and 5.4.0.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Getkirby	Kirby	< 4.9.0

Related Weaknesses (CWE)

CWE-863 CWE-862

References

https://github.com/getkirby/kirby/releases/tag/4.9.0Release Notes
https://github.com/getkirby/kirby/releases/tag/5.4.0Release Notes
https://github.com/getkirby/kirby/security/advisories/GHSA-85x2-r8xv-ww8cPatchVendor Advisory

FAQ

What is CVE-2026-42137?

CVE-2026-42137 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Kirby is an open-source content management system. Prior to versions 4.9.0 and 5.4.0, `pages.access/list` and `files.access/list` permissions are not consistently checked in the Panel and REST API. Th...

How severe is CVE-2026-42137?

CVE-2026-42137 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-42137?

Check the references section above for vendor advisories and patch information. Affected products include: Getkirby Kirby.