CVE-2026-25152

{
  "id": "CVE-2026-25152",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-25152",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-02-02T16:25:13.197716Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.6
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "backstage",
          "product": "backstage",
          "versions": [
            {
              "status": "affected",
              "version": "< 1.13.11"
            },
            {
              "status": "affected",
              "version": "= 1.14.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-01-30T22:15:56.190",
  "references": [
    {
      "url": "https://github.com/backstage/backstage/security/advisories/GHSA-w669-jj7h-88m9",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Backstage is an open framework for building developer portals, and @backstage/plugin-techdocs-node provides common node.js functionalities for TechDocs. In versions of @backstage/plugin-techdocs-node prior to 1.13.11 and 1.14.1, a path traversal vulnerability in the TechDocs local generator allows attackers to read arbitrary files from the host filesystem when Backstage is configured with `techdocs.generator.runIn: local`. When processing documentation from untrusted sources, symlinks within the docs directory are followed by MkDocs during the build process. File contents are embedded into generated HTML and exposed to users who can view the documentation. This vulnerability is fixed in` @backstage/plugin-techdocs-node` versions 1.13.11 and 1.14.1. Some workarounds are available. Switch to `runIn: docker` in `app-config.yaml` and/or restrict write access to TechDocs source repositories to trusted users only."
    },
    {
      "lang": "es",
      "value": "Backstage es un framework abierto para construir portales de desarrolladores, y @backstage/plugin-techdocs-node proporciona funcionalidades comunes de node.js para TechDocs. En versiones de @backstage/plugin-techdocs-node anteriores a la 1.13.11 y 1.14.1, una vulnerabilidad de salto de ruta en el generador local de TechDocs permite a los atacantes leer archivos arbitrarios del sistema de archivos del host cuando Backstage está configurado con 'techdocs.generator.runIn: local'. Al procesar documentación de fuentes no confiables, los enlaces simbólicos dentro del directorio docs son seguidos por MkDocs durante el proceso de construcción. El contenido de los archivos se incrusta en el HTML generado y se expone a los usuarios que pueden ver la documentación. Esta vulnerabilidad está corregida en las versiones 1.13.11 y 1.14.1 de '@backstage/plugin-techdocs-node'. Algunas soluciones alternativas están disponibles. Cambie a 'runIn: docker' en 'app-config.yaml' y/o restrinja el acceso de escritura a los repositorios de origen de TechDocs solo a usuarios de confianza."
    }
  ],
  "lastModified": "2026-06-17T10:24:11.980",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "086F7DE4-8356-4AE3-9E29-B852A5C4B2DB",
              "versionEndExcluding": "1.13.11"
            },
            {
              "criteria": "cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0393AC7C-1889-4869-ABAF-1C5D96CA2C06",
              "versionEndExcluding": "1.14.1",
              "versionStartIncluding": "1.14.0"
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          ],
          "operator": "OR"
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  ],
  "sourceIdentifier": "security-advisories@github.com"
}