{"action":"Upgrade symfony/symfony to 5.4.53 or later.","affected":[{"fixed":"5.4.53","introduced":"0"},{"fixed":"6.4.41","introduced":"6.0.0"},{"fixed":"7.4.13","introduced":"7.0.0"},{"fixed":"8.0.13","introduced":"8.0.0"}],"component":"symfony/symfony","cve_ids":["CVE-2026-48489"],"ecosystem":"Packagist","epss":0.00596,"exploited":false,"fixed_versions":["5.4.53","6.4.41","7.4.13","8.0.13"],"ghsa_id":"GHSA-6h46-9jf5-q59x","id":"tcs_01M5KEX2Z4T023RZRRHA2K124B","modified_at":"2026-09-10T03:51:08.102846876Z","published_at":"2026-06-15T17:28:20Z","references":["https://osv.dev/vulnerability/GHSA-6h46-9jf5-q59x","https://github.com/symfony/symfony/security/advisories/GHSA-6h46-9jf5-q59x","https://github.com/symfony/symfony/commit/c48a4276309e11aedeeb0ce3a89dfbf0b4fe04ff","https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2026-48489.yaml","https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2026-48489.yaml","https://github.com/symfony/symfony","https://symfony.com/cve-2026-48489"],"severity":{"label":"high"},"sources":[{"source":"osv","source_id":"GHSA-6h46-9jf5-q59x#Packagist/symfony/symfony","url":"https://osv.dev/vulnerability/GHSA-6h46-9jf5-q59x"}],"summary":"Symfony: Security Firewall Bypass via failure_forward Subrequest: Unauthenticated Access to access_control-Protected GET Routes"}