{"action":"Upgrade getkirby/cms to 5.2.2 or later.","affected":[{"fixed":"5.2.2","introduced":"5.0.0"}],"component":"getkirby/cms","cve_ids":["CVE-2026-21896"],"ecosystem":"Packagist","epss":0.0023,"exploited":false,"fixed_versions":["5.2.2"],"ghsa_id":"GHSA-4j78-4xrm-cr2f","id":"tcs_01M5KEV2AZPJPNTH6QCRVM31V1","modified_at":"2026-02-03T03:16:05.615454Z","published_at":"2026-01-08T20:32:05Z","references":["https://osv.dev/vulnerability/GHSA-4j78-4xrm-cr2f","https://github.com/getkirby/kirby/security/advisories/GHSA-4j78-4xrm-cr2f","https://nvd.nist.gov/vuln/detail/CVE-2026-21896","https://github.com/getkirby/kirby/commit/f5ce1347b427b819bf193acf11fd0da232f7af47","https://github.com/getkirby/kirby","https://github.com/getkirby/kirby/releases/tag/5.2.2"],"severity":{"label":"medium","score":5.7},"sources":[{"source":"osv","source_id":"GHSA-4j78-4xrm-cr2f","url":"https://osv.dev/vulnerability/GHSA-4j78-4xrm-cr2f"},{"source":"nvd","source_id":"CVE-2026-21896","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21896"}],"summary":"Kirby is missing permission checks in the content changes API"}