FKIE_CVE-2026-54684

Vulnerability from fkie_nvd - Published: 2026-07-14 22:17 - Updated: 2026-07-15 20:23
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."
    }
  ],
  "id": "CVE-2026-54684",
  "lastModified": "2026-07-15T20:23:47.313",
  "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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