FKIE_CVE-2026-54684

Vulnerability from fkie_nvd - Published: 2026-07-14 22:17 - Updated: 2026-10-24 22:10
Severity
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
jadx is a Dex to Java decompiler. From 1.5.2 to 1.5.5, a malicious .xapk file can cause jadx to write attacker-controlled archive entry contents outside the intended XAPK plugin temporary unpack directory because XApkLoader resolves each entry name directly with tmpDir.resolve(fileName) after a CWD-based ZIP security check. When jadx is launched from a directory that is an ancestor of the config directory, the arbitrary write can plant a JAR in plugins/dropins, and the next jadx run loads the JAR with URLClassLoader and ServiceLoader, executing attacker-controlled plugin code. This issue is fixed in version 1.5.6.
References
security-advisories@github.comhttps://github.com/skylot/jadx/commit/a74bb07d6eebaf4da5c2b2cbc4d3c0c3cb7517cb
security-advisories@github.comhttps://github.com/skylot/jadx/releases/tag/v1.5.6
security-advisories@github.comhttps://github.com/skylot/jadx/security/advisories/GHSA-gpvc-ccw7-744v
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/skylot/jadx/security/advisories/GHSA-gpvc-ccw7-744v
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "jadx",
          "vendor": "skylot",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.5.2, \u003c 1.5.6"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "jadx is a Dex to Java decompiler. From 1.5.2 to 1.5.5, a malicious .xapk file can cause jadx to write attacker-controlled archive entry contents outside the intended XAPK plugin temporary unpack directory because XApkLoader resolves each entry name directly with tmpDir.resolve(fileName) after a CWD-based ZIP security check. When jadx is launched from a directory that is an ancestor of the config directory, the arbitrary write can plant a JAR in plugins/dropins, and the next jadx run loads the JAR with URLClassLoader and ServiceLoader, executing attacker-controlled plugin code. This issue is fixed in version 1.5.6."
    },
    {
      "lang": "es",
      "value": "jadx es un descompilador de Dex a Java. Desde la 1.5.2 hasta la 1.5.5, un archivo .xapk malicioso puede hacer que jadx escriba contenidos de entrada de archivo controlados por el atacante fuera del directorio temporal de descompresi\u00f3n del plugin XAPK previsto porque XApkLoader resuelve cada nombre de entrada directamente con tmpDir.resolve(fileName) despu\u00e9s de una comprobaci\u00f3n de seguridad ZIP basada en CWD. Cuando jadx se inicia desde un directorio que es un ancestro del directorio de configuraci\u00f3n, la escritura arbitraria puede colocar un JAR en plugins/dropins, y la siguiente ejecuci\u00f3n de jadx carga el JAR con URLClassLoader y ServiceLoader, ejecutando c\u00f3digo de plugin controlado por el atacante. Este problema est\u00e1 solucionado en la versi\u00f3n 1.5.6."
    }
  ],
  "id": "CVE-2026-54684",
  "lastModified": "2026-10-24T22:10:00.210",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-54684",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-15T14:30:45.535910Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-14T22:17:16.680",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/skylot/jadx/commit/a74bb07d6eebaf4da5c2b2cbc4d3c0c3cb7517cb"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/skylot/jadx/releases/tag/v1.5.6"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/skylot/jadx/security/advisories/GHSA-gpvc-ccw7-744v"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/skylot/jadx/security/advisories/GHSA-gpvc-ccw7-744v"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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