VulnerabilityAnalyzed
CVE-2026-42051
Prior to versions 4.9.0 and 5.4.0, the system API endpoint leaks license data and installed version to authenticated users.
MEDIUM 5.3EPSS 0.19%
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
Description
Kirby is an open-source content management system. Prior to versions 4.9.0 and 5.4.0, the system API endpoint leaks license data and installed version to authenticated users. This issue has been patched in versions 4.9.0 and 5.4.0.
- CVSS 4.0
- 5.3 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.19% probability · 9th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-862
- Affected
- getkirby/kirby
- Source
- security-advisories@github.com
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-x68m-c7jf-2572Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.