CVE-2026-114104

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.

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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
https://github.com/cthackers/adm-zip/security/advisories/GHSA-p634-w6r4-rjp2

Configurations

No configuration.

History

28 Oct 2026, 17:17

Type	Values Removed	Values Added
References	~~() https://github.com/cthackers/adm-zip/security/advisories/GHSA-p634-w6r4-rjp2 -~~	() https://github.com/cthackers/adm-zip/security/advisories/GHSA-p634-w6r4-rjp2 -

21 Oct 2026, 01:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-21 01:17

Updated : 2026-10-28 17:17

NVD link : CVE-2026-114104

Mitre link : CVE-2026-114104

CVE.ORG link : CVE-2026-114104

JSON object : View

Products Affected

No product.

CWE

CWE-436

Interpretation Conflict

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