Vulnerability DatabaseCVE-2026-114104
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CVE-2026-114104
Published:October 21, 2026
Updated:October 21, 2026
adm-zip before 0.6.1 contains an inconsistent entry resolution vulnerability that allows attackers to bypass content validation by supplying ZIP archives with duplicate entry names. Attackers can craft archives where getEntry() returns the last duplicate while extractAllTo() writes the first, causing unvalidated bytes to be written to disk.
Affected Packages
https://github.com/cthackers/adm-zip.git (GITHUB):
Affected version(s) >=v0.1.2 <v0.6.1
Fix Suggestion:
Update to version v0.6.1
adm-zip (NPM):
Affected version(s) >=0.1.2 <0.6.1
Fix Suggestion:
Update to version 0.6.1
Related Resources (2)
https://github.com/cthackers/adm-zip/security/advisories/GHSA-p634-w6r4-rjp2
https://www.vulncheck.com/advisories/adm-zip-before-0.6.1-duplicate-zip-entry-name-validation-bypass
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CVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Interpretation Conflict
CWE-436