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CVE-2026-0021

Full vulnerability record from the local CVENow database.

Description

In hasInteractAcrossUsersFullPermission of AppInfoBase.java, there is a possible cross-user permission bypass due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Severity
HIGH
CVSS score
8.4 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-03-02 19:16:30.347000
Last modified
2026-11-05 20:40:24.650000
View original CVE JSON
{
  "id": "CVE-2026-0021",
  "sourceIdentifier": "[email protected]",
  "published": "2026-03-02T19:16:30.347",
  "lastModified": "2026-11-05T20:40:24.650",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In hasInteractAcrossUsersFullPermission of AppInfoBase.java, there is a possible cross-user permission bypass due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation."
    },
    {
      "lang": "es",
      "value": "En hasInteractAcrossUsersFullPermission de AppInfoBase.java, existe una posible elusión de permisos entre usuarios debido a un delegado confuso. Esto podría llevar a una escalada local de privilegios sin necesidad de privilegios de ejecución adicionales. No se requiere interacción del usuario para la explotación."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Google",
          "product": "Android",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "16-qpr2",
              "status": "affected"
            },
            {
              "version": "16",
              "status": "affected"
            },
            {
              "version": "15",
              "status": "affected"
            },
            {
              "version": "14",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
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        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.4,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.5,
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          "role": "CISA Coordinator",
          "version": "2.0.3"
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      "description": [
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          "value": "CWE-441"
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  "references": [
    {
      "url": "https://source.android.com/docs/security/bulletin/2026/2026-03-01",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}