{"id":"CVE-2026-55878","summary":"Symfony: Path Traversal in symfony/ux-toolkit Allows Arbitrary File Write and Read via Crafted Recipe Manifest","details":"Symfony UX is a JavaScript ecosystem for Symfony. From 2.32.0 before 2.36.1 and from 3.0.0 before 3.2.0, the ux:install console command installs files from a recipe kit by copying paths listed in a copy-files map, and because Path::isRelative() accepts paths like ../../../etc, a crafted or compromised kit can write attacker-controlled content to arbitrary locations or read local files outside the recipe directory. This issue is fixed in versions 2.36.1 and 3.2.0.","aliases":["GHSA-p9xj-fpr2-jf2q"],"modified":"2026-07-15T01:48:56.589710334Z","published":"2026-07-08T21:30:33.816Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-22"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55878.json"},"references":[{"type":"WEB","url":"https://github.com/symfony/ux/releases/tag/v2.36.1"},{"type":"WEB","url":"https://github.com/symfony/ux/releases/tag/v3.2.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55878.json"},{"type":"ADVISORY","url":"https://github.com/symfony/ux/security/advisories/GHSA-p9xj-fpr2-jf2q"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55878"},{"type":"FIX","url":"https://github.com/symfony/ux/commit/7b4ddf3764bf269a1b5fde5bf03c4bce568694e4"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/symfony/ux","events":[{"introduced":"b9647de63d27b8790fd110ec5b8c5348035cc43d"},{"fixed":"dfd2ce941ec3e92af36427685cfb4e900ea9244c"},{"introduced":"3cef8e0d9557bbde60c3f1bfd2cbb1004af7fc9a"},{"fixed":"721417c64bbc85022c56d1e3fb7f66874a38cef2"},{"fixed":"7b4ddf3764bf269a1b5fde5bf03c4bce568694e4"}],"database_specific":{"source":["DESCRIPTION","REFERENCES"],"extracted_events":[{"introduced":"2.32.0"},{"fixed":"2.36.1"},{"introduced":"3.0.0"},{"fixed":"3.2.0"}]}}],"versions":["v3.1.0","v2.36.0","v2.35.0","v3.0.0","v2.34.0","v2.33.0","v2.32.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55878.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}