CVE-2026-55878

{
  "id": "CVE-2026-55878",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-08T22:17:16.050",
  "lastModified": "2026-10-25T17:10:00.197",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Symfony UX es un ecosistema JavaScript para Symfony. Desde 2.32.0 antes de 2.36.1 y desde 3.0.0 antes de 3.2.0, el comando de consola ux:install instala archivos de un kit de receta copiando rutas listadas en un mapa de ’copy-files’, y debido a que Path::isRelative() acepta rutas como .. / .. / .. / etc, un kit manipulado o comprometido puede escribir contenido controlado por el atacante en ubicaciones arbitrarias o leer archivos locales fuera del directorio de la receta. Este problema está solucionado en las versiones 2.36.1 y 3.2.0."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "symfony",
          "product": "ux",
          "versions": [
            {
              "version": ">= 2.32.0, < 2.36.1",
              "status": "affected"
            },
            {
              "version": ">= 3.0.0, < 3.2.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-09T14:18:56.012444Z",
          "id": "CVE-2026-55878",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/symfony/ux/commit/7b4ddf3764bf269a1b5fde5bf03c4bce568694e4",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/symfony/ux/releases/tag/v2.36.1",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/symfony/ux/releases/tag/v3.2.0",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/symfony/ux/security/advisories/GHSA-p9xj-fpr2-jf2q",
      "source": "[email protected]"
    }
  ]
}