CVE-2026-56876

HIGH 8.1

extract-zip unvalidated symlink path traversal

CVSS Score

8.1

EPSS Score

0.0%

EPSS Percentile

0th

extract-zip does not validate symlink targets when extracting zip archives. When processing a malicious zip file containing a symlink with a relative path like '../../../../etc/passwd', extract-zip will extract the symlink without validation, allowing it to point outside the extraction directory. Depending on how extract-zip is used, an attacker could read or write to arbitrary files.

CWE	CWE-22 CWE-61
Vendor	max-mapper
Product	extract-zip
Published	Jun 26, 2026

Stay Ahead of the Next One

Get instant alerts for max-mapper extract-zip

Be the first to know when new high vulnerabilities affecting max-mapper extract-zip are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Affected Versions

max-mapper / extract-zip

0 < *

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/ziad626/extract-zip-security-research/security/advisories/GHSA-x7jf-2287-qcpf raw.githubusercontent.com: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-177-01.json cve.org: https://www.cve.org/CVERecord?id=CVE-2026-56876

Credits

Ziad Salah, Independent