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CVE-2026-103922

Estado: Pendiente de análisisCrítica (9.3)—

Capacitor is a cross-platform native runtime for web applications. From 6.0.0 until 6.2.2, 7.6.9, 8.3.5, 8.4.3, and 8.5.1, the Android and iOS WebView navigation guard validates a target URL's host and scheme but not its path, allowing a victim who activates an untrusted link to navigate a frame to /_capacitor_http_interceptor_. The native proxy can fetch an attacker-selected URL and return the response as a document at the application's own origin, allowing script in that response to access same-origin storage, cookies, and registered Capacitor plugin capabilities. Applications remain affected when CapacitorHttp is disabled because affected releases serve the proxy path regardless of that setting. This issue is fixed in versions 6.2.2, 7.6.9, 8.3.5, 8.4.3, and 8.5.1.

CVSS

Probabilidad de explotación (EPSS)

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.

Capacitor WebView acepta interacción del usuario (activación de enlace no confiable) para redirigir a /_capacitor_http_interceptor_, permitiendo lectura de almacenamiento mismo-origen, cookies y ejecución en contexto de aplicación.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

User TrainingRestrict Web-Based ContentRestrict File and Directory PermissionsPassword PoliciesExecution PreventionBehavior Prevention on Endpoint

Tecnologías afectadas (1)

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

Capacitor — CapacitorAI

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-103922",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-103922",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-10-01T18:01:35.925716Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 9.3,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.8,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "ionic-team",
          "product": "capacitor",
          "versions": [
            {
              "status": "affected",
              "version": ">= 6.0.0, < 6.2.2"
            },
            {
              "status": "affected",
              "version": ">= 7.0.0, < 7.6.9"
            },
            {
              "status": "affected",
              "version": ">= 8.0.0, < 8.3.5"
            },
            {
              "status": "affected",
              "version": ">= 8.3.5, < 8.4.3"
            },
            {
              "status": "affected",
              "version": ">= 8.5.0, < 8.5.1"
            }
          ]
        },
        {
          "vendor": "@capacitor",
          "product": "android",
          "versions": [
            {
              "status": "affected",
              "version": ">= 8.5.0, < 8.5.1"
            },
            {
              "status": "affected",
              "version": ">= 8.3.5, < 8.4.3"
            },
            {
              "status": "affected",
              "version": ">= 8.0.0, < 8.3.5"
            },
            {
              "status": "affected",
              "version": ">= 7.0.0, < 7.6.9"
            },
            {
              "status": "affected",
              "version": ">= 6.0.0, < 6.2.2"
            }
          ]
        },
        {
          "vendor": "@capacitor",
          "product": "ios",
          "versions": [
            {
              "status": "affected",
              "version": ">= 8.5.0, < 8.5.1"
            },
            {
              "status": "affected",
              "version": ">= 8.3.5, < 8.4.3"
            },
            {
              "status": "affected",
              "version": ">= 8.0.0, < 8.3.5"
            },
            {
              "status": "affected",
              "version": ">= 7.0.0, < 7.6.9"
            },
            {
              "status": "affected",
              "version": ">= 6.0.0, < 6.2.2"
            }
          ]
        },
        {
          "vendor": "com.capacitorjs",
          "product": "core",
          "versions": [
            {
              "status": "affected",
              "version": ">= 8.5.0, < 8.5.1"
            },
            {
              "status": "affected",
              "version": ">= 8.3.5, < 8.4.3"
            },
            {
              "status": "affected",
              "version": ">= 8.0.0, < 8.3.5"
            },
            {
              "status": "affected",
              "version": ">= 7.0.0, < 7.6.9"
            },
            {
              "status": "affected",
              "version": ">= 6.0.0, < 6.2.2"
            }
          ]
        },
        {
          "vendor": "swift",
          "product": "github.com/ionic-team/capacitor-swift-pm",
          "versions": [
            {
              "status": "affected",
              "version": ">= 8.5.0, < 8.5.1"
            },
            {
              "status": "affected",
              "version": ">= 8.3.5, < 8.4.3"
            },
            {
              "status": "affected",
              "version": ">= 8.0.0, < 8.3.5"
            },
            {
              "status": "affected",
              "version": ">= 7.0.0, < 7.6.9"
            },
            {
              "status": "affected",
              "version": ">= 6.0.0, < 6.2.2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-10-01T18:17:12.840",
  "references": [
    {
      "url": "https://github.com/ionic-team/capacitor/commit/430356a91e1419fc66862dc09835081aa501677e",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/ionic-team/capacitor/commit/80b6c5e81d062e1e158914040f49e044d95b7ccb",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/ionic-team/capacitor/commit/85ccc44151fdd5ae5e0d806d875766ef4b84ad5d",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/ionic-team/capacitor/commit/af9a287fef45f0ac68ce640cb42fed2d06b0f1b4",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/ionic-team/capacitor/commit/d5e3170ba0ff155fc542b7e6d16cff5201406540",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/ionic-team/capacitor/commit/ee586ae680887ba99d066616f976db149542d922",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/ionic-team/capacitor/releases/tag/8.5.1",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/ionic-team/capacitor/security/advisories/GHSA-rvm3-566m-v7fv",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-346"
        },
        {
          "lang": "en",
          "value": "CWE-441"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Capacitor is a cross-platform native runtime for web applications. From 6.0.0 until 6.2.2, 7.6.9, 8.3.5, 8.4.3, and 8.5.1, the Android and iOS WebView navigation guard validates a target URL's host and scheme but not its path, allowing a victim who activates an untrusted link to navigate a frame to /_capacitor_http_interceptor_. The native proxy can fetch an attacker-selected URL and return the response as a document at the application's own origin, allowing script in that response to access same-origin storage, cookies, and registered Capacitor plugin capabilities. Applications remain affected when CapacitorHttp is disabled because affected releases serve the proxy path regardless of that setting. This issue is fixed in versions 6.2.2, 7.6.9, 8.3.5, 8.4.3, and 8.5.1."
    }
  ],
  "lastModified": "2026-10-02T18:44:11.270",
  "sourceIdentifier": "security-advisories@github.com"
}