{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Apktool",
          "vendor": "iBotPeaches",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.0.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Apktool is a tool for reverse engineering Android APK files. In versions 3.0.0 and 3.0.1, a path traversal vulnerability in `brut/androlib/res/decoder/ResFileDecoder.java` allows a maliciously crafted APK to write arbitrary files to the filesystem during standard decoding (`apktool d`). This is a security regression introduced in commit e10a045 (PR #4041, December 12, 2025), which removed the `BrutIO.sanitizePath()` call that previously prevented path traversal in resource file output paths. An attacker can embed `../` sequences in the `resources.arsc` Type String Pool to escape the output directory and write files to arbitrary locations, including `~/.ssh/config`, `~/.bashrc`, or Windows Startup folders, escalating to RCE. The fix in version 3.0.2 re-introduces `BrutIO.sanitizePath()` in `ResFileDecoder.java` before file write operations."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-21T01:35:22.396Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/iBotPeaches/Apktool/security/advisories/GHSA-m8mh-x359-vm8m",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/iBotPeaches/Apktool/security/advisories/GHSA-m8mh-x359-vm8m"
        },
        {
          "name": "https://github.com/iBotPeaches/Apktool/pull/4041",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/iBotPeaches/Apktool/pull/4041"
        },
        {
          "name": "https://github.com/iBotPeaches/Apktool/commit/e10a0450c7afcd9462c0b76bcbff0e7428b92bdd#diff-cd531ebe1014bfd18185bf21585ca5cdb16fbcb07703ebc47949a1b4e4e36bc3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/iBotPeaches/Apktool/commit/e10a0450c7afcd9462c0b76bcbff0e7428b92bdd#diff-cd531ebe1014bfd18185bf21585ca5cdb16fbcb07703ebc47949a1b4e4e36bc3"
        },
        {
          "name": "https://github.com/iBotPeaches/Apktool/releases/tag/v3.0.2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/iBotPeaches/Apktool/releases/tag/v3.0.2"
        }
      ],
      "source": {
        "advisory": "GHSA-m8mh-x359-vm8m",
        "discovery": "UNKNOWN"
      },
      "title": "Apktool: Path Traversal to Arbitrary File Write"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-39973",
    "datePublished": "2026-04-21T01:35:22.396Z",
    "dateReserved": "2026-04-08T00:01:47.627Z",
    "dateUpdated": "2026-04-21T01:35:22.396Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}