{"action":"Upgrade typo3/cms to 11.5.0 or later.","affected":[{"fixed":"11.5.0","introduced":"11.0.0"}],"component":"typo3/cms","cve_ids":["CVE-2021-41114"],"ecosystem":"Packagist","epss":0.01221,"exploited":false,"fixed_versions":["11.5.0"],"ghsa_id":"GHSA-m2jh-fxw4-gphm","id":"tcs_01M5KF51BWEDDYMVM4P8G3C8Z7","modified_at":"2026-07-08T06:29:06.518485987Z","published_at":"2021-10-05T20:23:35Z","references":["https://osv.dev/vulnerability/GHSA-m2jh-fxw4-gphm","https://github.com/TYPO3/typo3/security/advisories/GHSA-m2jh-fxw4-gphm","https://nvd.nist.gov/vuln/detail/CVE-2014-3941","https://nvd.nist.gov/vuln/detail/CVE-2021-41114","https://github.com/TYPO3/typo3/commit/5cbff85506cebe343e5ae59228977547cf8e3cf4","https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2021-41114.yaml","https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2021-41114.yaml","https://github.com/TYPO3/typo3","https://typo3.org/security/advisory/typo3-core-sa-2021-015"],"severity":{"label":"medium","score":4.8},"sources":[{"source":"osv","source_id":"GHSA-m2jh-fxw4-gphm#Packagist/typo3/cms","url":"https://osv.dev/vulnerability/GHSA-m2jh-fxw4-gphm"}],"summary":"HTTP Host Header Injection"}