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extract-zip arbitrary file write outside the destination directory via a symlink at the final path component

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

cve-program · CVE-2026-19693

Published

extract-zip through 2.0.1 containment-checks only the parent directory of each archive entry and never the entry's own final path component, so an archive containing two entries with identical names - a symlink whose target is outside the destination, followed by a regular file - writes through the planted symlink and yields an arbitrary file write outside the destination directory.

Source published
17 Aug 2026 13:30:22 UTC
Source modified
27 Aug 2026 11:29:02 UTC
Observed here
23 Oct 2026 15:48:27 UTC
Source terms
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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

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Sources read 26 Oct 10:17 UTC · 272 of 272 readable · 270 fully read · documentation 467/469 current