binwalk vulnerable to UNIX Symbolic Link (Symlink) Following
A vulnerability, which was classified as problematic, was found in ReFirm Labs binwalk up to 2.3.2. Affected is an unknown function of the file src/binwalk/modules/extractor.py of the component Archive Extraction Handler. The manipulation leads to symlink following. It is possible to launch the attack remotely. Upgrading to version 2.3.3 can address this issue. The name of the patch is fa0c0bd59b8588814756942fe4cb5452e76c1dcd. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-216876.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | binwalk | < 2.3.3 | 2.3.3 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-4287
- https://github.com/ReFirmLabs/binwalk/pull/556
- https://github.com/ReFirmLabs/binwalk/commit/fa0c0bd59b8588814756942fe4cb5452e76c1dcd
- https://github.com/ReFirmLabs/binwalk
- https://github.com/ReFirmLabs/binwalk/releases/tag/v2.3.3
- https://vuldb.com/?ctiid.216876
- https://vuldb.com/?id.216876
- https://pypi.org/project/binwalk
- https://github.com/advisories/GHSA-8m3f-g62j-3vx8
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-59, CWE-61- Platform
- Python (PyPI)
- Package
binwalk- Disclosed
- 27.12.2022
- Updated
- 11.10.2026 13:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-788 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-8m3f-g62j-3vx8 - CC BY 4.0
Vulnerability history: binwalk
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 2
- First → latest
- 12.2022 01.2023
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 1
Disclosures per year
- 2022: 1
- 2023: 1
- 2024: 0
- 2025: 0
- 2026: 0
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binwalk vulnerable to UNIX Symbolic Link (Symlink) Following this entry
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