CVE-2026-85396 — rubyzip before 3.4.0 Path Traversal in Zip::Entry#extract via Sibling-Directory Prefix
rubyzip versions before 3.4.0 contain a path traversal vulnerability in Zip::Entry#extract that fails to properly validate extraction paths using prefix comparison without trail…
Published: 2026-09-03 · CVSS: 8.7 · CVSS 4.0
rubyzip versions before 3.4.0 contain a path traversal vulnerability in Zip::Entry#extract that fails to properly validate extraction paths using prefix comparison without trailing separators. Attackers can craft archive entries with names like ../upload_backup/owned.sh to write files outside the intended extraction directory into sibling paths sharing the destination prefix.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7