{"action":"Upgrade symfony/symfony to 5.4.52 or later.","affected":[{"fixed":"5.4.52","introduced":"0"},{"fixed":"6.4.40","introduced":"6.0.0"},{"fixed":"7.4.12","introduced":"7.0.0"},{"fixed":"8.0.12","introduced":"8.0.0"}],"component":"symfony/symfony","cve_ids":["CVE-2026-45071"],"ecosystem":"Packagist","epss":0.0057,"exploited":false,"fixed_versions":["5.4.52","6.4.40","7.4.12","8.0.12"],"ghsa_id":"GHSA-x6g4-fwcc-jj8w","id":"tcs_01M5KFARE239Q96D6BZ3Q4CBE5","modified_at":"2026-09-10T03:50:48.160788406Z","published_at":"2026-05-27T21:09:44Z","references":["https://osv.dev/vulnerability/GHSA-x6g4-fwcc-jj8w","https://github.com/symfony/symfony/security/advisories/GHSA-x6g4-fwcc-jj8w","https://github.com/symfony/symfony/commit/eea5fd7488cbdc241da4ce242344b7d9a3ecdf3d","https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/dom-crawler/CVE-2026-45071.yaml","https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2026-45071.yaml","https://github.com/symfony/symfony","https://symfony.com/cve-2026-45071"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-x6g4-fwcc-jj8w#Packagist/symfony/symfony","url":"https://osv.dev/vulnerability/GHSA-x6g4-fwcc-jj8w"},{"source":"nvd","source_id":"CVE-2026-45071","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45071"}],"summary":"Symfony has XXE (Local File Disclosure) in DomCrawler::addXmlContent() via validateOnParse = true"}