{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "2.32.0"
              },
              {
                "fixed": "2.36.1"
              },
              {
                "introduced": "3.0.0"
              },
              {
                "fixed": "3.2.0"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "b9647de63d27b8790fd110ec5b8c5348035cc43d"
            },
            {
              "fixed": "dfd2ce941ec3e92af36427685cfb4e900ea9244c"
            },
            {
              "introduced": "3cef8e0d9557bbde60c3f1bfd2cbb1004af7fc9a"
            },
            {
              "fixed": "721417c64bbc85022c56d1e3fb7f66874a38cef2"
            },
            {
              "fixed": "7b4ddf3764bf269a1b5fde5bf03c4bce568694e4"
            }
          ],
          "repo": "https://github.com/symfony/ux",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-p9xj-fpr2-jf2q"
  ],
  "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"
  },
  "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.",
  "id": "CVE-2026-55878",
  "modified": "2026-07-15T01:48:56.589710334Z",
  "published": "2026-07-08T21:30:33.816Z",
  "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"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Symfony: Path Traversal in symfony/ux-toolkit Allows Arbitrary File Write and Read via Crafted Recipe Manifest"
}