Medium (5.5) in adm-zip project adm-zip. EPSS 13% chance of exploitation in the next 30 days. Fixed in adm-zip 0.4.11.
adm-zip npm library before 0.4.9 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in a Zip archive entry that is mishandled during extraction. This vulnerability is also known as 'Zip-Slip'.
Severity
CVSS 3.1
5.5 medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS
13% chance of exploitation in the next 30 days; higher than 96% of CVEs (scores of 2026-10-31)