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GHSA-j7g2-gm7j-mfvm: Pre-Extraction Symlink Mode Stripping Bypass in OS Unzip Fallback (MobSF/Mobile-Security-Framework-MobSF)

[OFFICIALLY PUBLISHED BY VENDOR • PATCHED IN MobSF v4.6.5]
Officially published by upstream maintainer @ajinabraham on 2026-11-01T22:56:30Z as GHSA-j7g2-gm7j-mfvm (state: published, Low severity, CVSS v3.1 3.1 / CVSS v4.0 2.3) with official reporter credit to @ccsimplyspolit, and patched upstream in release 4.6.5.
→ Read the full whitebox code audit write-up: Anatomy of a Parser Differential: Breaking MobSF's Pre-Extraction Symlink Neutralizer via PK\x05\x06 EOCD Shadowing

0x00 // GitHub Security Advisory & Remediation Metadata

{
  "ghsa_id": "GHSA-j7g2-gm7j-mfvm",
  "repository": "MobSF/Mobile-Security-Framework-MobSF",
  "package": "pip:mobsf",
  "vulnerable_version_range": ">= 4.6.1, <= 4.6.4",
  "patched_versions": "4.6.5",
  "html_url": "https://github.com/MobSF/Mobile-Security-Framework-MobSF/security/advisories/GHSA-j7g2-gm7j-mfvm",
  "state": "published",
  "published_at": "2026-11-01T22:56:30Z",
  "summary": "Pre-extraction symlink mode stripping bypass in OS unzip fallback",
  "severity": "low",
  "cvss_v3": {
    "vector_string": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N",
    "score": 3.1,
    "severity": "LOW"
  },
  "cvss_v4": {
    "vector_string": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
    "score": 2.3,
    "severity": "LOW"
  },
  "status": "Officially Published by Vendor (GHSA-j7g2-gm7j-mfvm) • Patched in v4.6.5",
  "credits": [
    {
      "login": "ccsimplyspolit",
      "type": "reporter",
      "state": "accepted"
    }
  ],
  "cwe_ids": [
    "CWE-59",
    "CWE-755"
  ],
  "vulnerable_functions": [
    "neutralize_zip_special_modes",
    "os_unzip"
  ]
}