{"id":"CVE-2026-47767","aliases":["GHSA-fqc7-9xjw-jrh3"],"url":"https://o3.security/vulnerability/CVE-2026-47767","summary":"Symfony: SymfonyRuntime CVE-2024-50340 Patch Bypass: Web Requests Can Still Set APP_ENV/APP_DEBUG via parse_str/SAPI Argv Mismatch","details":"Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From 5.4.46 until 5.4.52, 6.4.40, 7.4.12, and 8.0.12, the CVE-2024-50340 fix gated runtime argv parsing on empty($_GET), but parse_str() and the web SAPI can disagree, allowing a crafted query string to leave $_GET empty while $_SERVER['argv'] still carries attacker-controlled --env or --no-debug flags that change APP_ENV or APP_DEBUG. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.","published":"2026-07-14T18:38:36.513Z","modified":"2026-08-12T03:51:22.747599270Z","cvss":null,"epss":{"score":0.00721,"percentile":0.51165,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"symfony/runtime","fixedVersion":"5.4.52"},{"ecosystem":"Packagist","name":"symfony/runtime","fixedVersion":"6.4.40"},{"ecosystem":"Packagist","name":"symfony/runtime","fixedVersion":"7.4.12"},{"ecosystem":"Packagist","name":"symfony/runtime","fixedVersion":"8.0.12"},{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"5.4.52"},{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"6.4.40"},{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"7.4.12"},{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"8.0.12"}],"fix":{"url":"https://github.com/symfony/symfony/commit/3228c3806ee511008bea19a95084d460b17e5d25","label":"symfony/symfony@3228c38"},"references":[{"type":"WEB","url":"https://github.com/symfony/symfony/releases/tag/v5.4.52"},{"type":"WEB","url":"https://github.com/symfony/symfony/releases/tag/v6.4.40"},{"type":"WEB","url":"https://github.com/symfony/symfony/releases/tag/v7.4.12"},{"type":"WEB","url":"https://github.com/symfony/symfony/releases/tag/v8.0.12"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47767.json"},{"type":"ADVISORY","url":"https://github.com/symfony/symfony/security/advisories/GHSA-fqc7-9xjw-jrh3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47767"},{"type":"FIX","url":"https://github.com/symfony/symfony/commit/3228c3806ee511008bea19a95084d460b17e5d25"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:22.747599270Z"}}