GHSA-m8mh-x359-vm8m

Source

https://github.com/advisories/GHSA-m8mh-x359-vm8m

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-m8mh-x359-vm8m/GHSA-m8mh-x359-vm8m.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-m8mh-x359-vm8m

Aliases

CVE-2026-39973

Published

2026-04-23T21:24:28Z

Modified

2026-04-23T21:33:53.595078Z

Severity

7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N CVSS Calculator

Summary

Apktool: Path Traversal to Arbitrary File Write

Details

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.

Fix: Re-introduce BrutIO.sanitizePath() in ResFileDecoder.java before file write operations.

Database specific

{
    "github_reviewed": true,
    "severity": "HIGH",
    "github_reviewed_at": "2026-04-23T21:24:28Z",
    "nvd_published_at": "2026-04-21T02:16:07Z",
    "cwe_ids": [
        "CWE-22"
    ]
}

References

Affected packages

Maven / org.apktool:apktool-lib

Package

Name: org.apktool:apktool-lib; View open source insights on deps.dev
Purl: pkg:maven/org.apktool/apktool-lib

Affected ranges

Type: ECOSYSTEM
Events: Introduced

3.0.0

Fixed

3.0.2

Affected versions

3.*

3.0.0

3.0.1

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-m8mh-x359-vm8m/GHSA-m8mh-x359-vm8m.json"