{"id":"CVE-2017-16654","aliases":["GHSA-c49r-8gj6-768r"],"url":"https://o3.security/vulnerability/CVE-2017-16654","summary":"Symfony Directory Traversal","details":"An issue was discovered in Symfony before 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5, and 4.0-BETA5. The Intl component includes various bundle readers that are used to read resource bundles from the local filesystem. The read() methods of these classes use a path and a locale to determine the language bundle to retrieve. The locale argument value is commonly retrieved from untrusted user input (like a URL parameter). An attacker can use this argument to navigate to arbitrary directories via the dot-dot-slash attack, aka Directory Traversal.","published":"2018-08-06T21:29:00.330Z","modified":"2026-08-07T11:48:14.412296865Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"symfony/intl","fixedVersion":"2.7.38"},{"ecosystem":"Packagist","name":"symfony/intl","fixedVersion":"2.8.31"},{"ecosystem":"Packagist","name":"symfony/intl","fixedVersion":"3.2.14"},{"ecosystem":"Packagist","name":"symfony/intl","fixedVersion":"3.3.13"},{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"2.7.38"},{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"2.8.31"},{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"3.2.14"},{"ecosystem":"Packagist","name":"symfony/symfony","fixedVersion":"3.3.13"}],"fix":{"url":"https://github.com/symfony/symfony/pull/24994","label":"symfony/symfony#24994"},"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2019/03/msg00009.html"},{"type":"ADVISORY","url":"https://www.debian.org/security/2018/dsa-4262"},{"type":"REPORT","url":"https://github.com/symfony/symfony/pull/24994"},{"type":"REPORT","url":"https://symfony.com/blog/cve-2017-16654-intl-bundle-readers-breaking-out-of-paths"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-16654"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/intl/CVE-2017-16654.yaml"},{"type":"WEB","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2017-16654.yaml"},{"type":"PACKAGE","url":"https://github.com/symfony/symfony"},{"type":"WEB","url":"https://symfony.com/cve-2017-16654"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:48:14.412296865Z"}}