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CVE-2026-106459

Estado: RecibidaAlta (8.5)—

Backstage is an open framework for building developer portals. From 0.3.0 until 0.3.8, the @backstage/plugin-scaffolder-backend-module-sentry package is affected by improper input validation in sentry scaffolder actions. An authenticated internal user who can execute the affected actions may cause the backend to contact unintended destinations and disclose Sentry integration credentials. Subsequent impact depends on network reachability and the privileges granted to the configured token. This issue is fixed in version 0.3.8.

CVSS

Probabilidad de explotación (EPSS)

FIRST aún no ha puntuado esta CVE (habitual en CVEs muy recientes o rechazadas).

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Inferido por reglas deterministas a partir del vector CVSS y la CWE. Solo orientativo.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningThreat Intelligence ProgramSSL/TLS InspectionPrivileged Account ManagementNetwork SegmentationNetwork Intrusion Prevention

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Backstage — Plugin Scaffolder Backend Module SentryAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-106459",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4.7,
        "exploitabilityScore": 3.1
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "backstage",
          "product": "backstage",
          "versions": [
            {
              "status": "affected",
              "version": ">= 1.47.0, < 1.54.8"
            }
          ]
        },
        {
          "vendor": "@backstage",
          "product": "plugin-scaffolder-backend-module-sentry",
          "versions": [
            {
              "status": "affected",
              "version": ">= 0.3.0, < 0.3.8"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-10-06T21:17:16.450",
  "references": [
    {
      "url": "https://github.com/backstage/backstage/commit/b0170fad7962fb8c3d71366b5265cf283c7bbcf7",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/backstage/backstage/releases/tag/v1.54.8",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/backstage/backstage/releases/tag/v1.55.0",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/backstage/backstage/security/advisories/GHSA-g734-fhp4-7mfp",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        },
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Backstage is an open framework for building developer portals. From 0.3.0 until 0.3.8, the @backstage/plugin-scaffolder-backend-module-sentry package is affected by improper input validation in sentry scaffolder actions. An authenticated internal user who can execute the affected actions may cause the backend to contact unintended destinations and disclose Sentry integration credentials. Subsequent impact depends on network reachability and the privileges granted to the configured token. This issue is fixed in version 0.3.8."
    }
  ],
  "lastModified": "2026-10-06T21:17:16.450",
  "sourceIdentifier": "security-advisories@github.com"
}