{"id":"CVE-2026-42051","summary":"Kirby: System API endpoint leaks license data and installed version to authenticated users","details":"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.","aliases":["GHSA-x68m-c7jf-2572"],"modified":"2026-07-08T08:13:13.395404004Z","published":"2026-05-09T03:37:42.707Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42051.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-862"]},"references":[{"type":"WEB","url":"https://github.com/getkirby/kirby/releases/tag/4.9.0"},{"type":"WEB","url":"https://github.com/getkirby/kirby/releases/tag/5.4.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42051.json"},{"type":"ADVISORY","url":"https://github.com/getkirby/kirby/security/advisories/GHSA-x68m-c7jf-2572"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42051"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/getkirby/kirby","events":[{"introduced":"0"},{"fixed":"d952dfc0a890979c863ec5fa11660e37400f0f4c"},{"introduced":"2ff182ba39ddea19fa1615bd3733f734b5e53842"},{"fixed":"80061614af90387da8b8ff9d92b390050a5f958f"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"4.9.0"},{"introduced":"5.0.0"},{"fixed":"5.4.0"}],"cpe":"cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*"}}],"versions":["4.8.0","5.3.3","5.3.2","5.3.1","5.3.0","5.2.3","5.2.2","5.2.1","5.2.0","5.1.4","5.1.3","5.1.2","5.1.1","5.1.0","5.0.4","5.0.3","5.0.2","5.0.1","5.0.0","4.7.2","4.7.1","4.7.0","4.6.1","4.6.0","4.5.0","4.4.1","4.4.0","4.3.1","4.3.0","4.2.0","4.1.2","4.1.1","4.1.0","3.9.8","4.0.3","4.0.2","4.0.1","4.0.0","3.9.7","3.9.6.1","3.9.6","3.8.4","3.9.6-rc.1","3.9.5","3.9.4","3.9.3","3.9.2","3.9.1","3.9.0","3.8.3","3.8.2","3.8.1.1","3.8.1","3.8.0","3.7.5","3.7.4","3.7.3","3.6.6","3.7.4-rc.1","3.5.7.1","3.7.2.1","3.7.2","3.7.1","3.7.0.2","3.7.0.1","3.7.0","3.6.5","3.6.4","3.6.3.1","3.6.3","3.6.2","3.6.2-rc.3","3.6.2-rc.2","3.6.2-rc.1","3.6.1.1","3.6.0","3.5.7","3.5.6","3.5.5","3.5.4","3.5.3.1","3.5.3","3.5.2","3.5.1","3.5.1-rc.1","3.5.0","3.5.0-rc.7","3.5.0-rc.6","3.5.0-rc.5","3.5.0-rc.4","3.5.0-rc.3","3.5.0-rc.2","3.5.0-rc.1","3.4.2","3.4.1","3.4.0","3.3.6","3.3.5","3.3.4","3.3.3","3.3.2","3.3.1","3.3.0","3.2.5","3.2.5-rc.2","3.2.5-rc.1","3.2.3-rc.1","3.2.2","3.2.1","3.2.1-rc.1","3.2.0","3.2.0-rc.4","3.2.0-rc.3","3.2.0-rc.2","3.2.0-rc.1","3.1.4","3.1.4-rc.1","3.1.3","3.1.3-rc.1","3.1.2","3.1.2-rc.1","3.1.1","3.1.0","3.1.0-rc.1","3.0.3","3.0.3-rc.3","3.0.3-rc.2","3.0.3-rc.1","3.0.2","3.0.2-rc.1","3.0.1","3.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42051.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"}]}