{"action":"Upgrade typo3/cms-core to 10.4.55 or later.","affected":[{"fixed":"14.0.2","introduced":"14.0.0"},{"fixed":"13.4.23","introduced":"13.0.0"},{"fixed":"12.4.41","introduced":"12.0.0"},{"fixed":"11.5.49","introduced":"11.0.0"},{"fixed":"10.4.55","introduced":"10.0.0"}],"component":"typo3/cms-core","cve_ids":["CVE-2026-0859"],"ecosystem":"Packagist","epss":0.00184,"exploited":false,"fixed_versions":["14.0.2","13.4.23","12.4.41","11.5.49","10.4.55"],"ghsa_id":"GHSA-7vp9-x248-9vr9","id":"tcs_01M5KEYE0NY6J4KYTZWZ46NJRB","modified_at":"2026-02-03T02:58:50.367259Z","published_at":"2026-01-13T21:54:06Z","references":["https://osv.dev/vulnerability/GHSA-7vp9-x248-9vr9","https://github.com/TYPO3/typo3/security/advisories/GHSA-7vp9-x248-9vr9","https://nvd.nist.gov/vuln/detail/CVE-2026-0859","https://github.com/TYPO3/typo3/commit/3225d705080a1bde57a66689621c947da5a4782f","https://github.com/TYPO3/typo3/commit/722bf71c118b0a8e4f2c2494854437d846799a13","https://github.com/TYPO3/typo3/commit/e0f0ceee480c203fbb60b87454f5f193e541d27f","https://github.com/TYPO3/typo3","https://typo3.org/security/advisory/typo3-core-sa-2026-004"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"GHSA-7vp9-x248-9vr9","url":"https://osv.dev/vulnerability/GHSA-7vp9-x248-9vr9"},{"source":"nvd","source_id":"CVE-2026-0859","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0859"}],"summary":"TYPO3 CMS Allows Insecure Deserialization via Mailer File Spool"}