CVE-2026-116137Published

adm-zip through 0.6.1 Duplicate-Entry Validation Bypass via Canonically Equivalent Names

Exact source revision recorded 25 Oct 2026 13:17:04 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-116137

Published

adm-zip through 0.6.1 contains a duplicate-entry validation bypass that allows attackers to evade the readEntries() check by using canonically equivalent entry names like './hello.txt' and 'hello.txt'. Attackers can craft ZIP archives where getEntry() or readAsText() validates benign content while extractAllTo() writes malicious content to the same path, bypassing integrity checks.

Source published: 25 Oct 2026 11:51:01 UTC
Source modified: 25 Oct 2026 11:51:01 UTC
Observed here: 25 Oct 2026 13:17:04 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

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 4.0 · 6.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS 3.1 · 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N