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CVE-2026-77301 Details

Description

adm-zip is a JavaScript library for creating and extracting ZIP archives in Node.js. Prior to 0.6.1, getData() in zipEntry.js trusts an entry's central-directory uncompressed size and allocates output memory before validating that value against the actual compressed data and decompression result. A small crafted ZIP can declare a multi-gigabyte uncompressed size, causing Buffer.alloc and decompression handling to commit excessive resident memory before CRC validation reports an error. Applications that read entries from untrusted archives can therefore be terminated by the operating system or suffer service-wide memory exhaustion. This issue is fixed in version 0.6.1.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/cthackers/adm-zip/security/advisories/GHSA-7q85-xj36-vmfc	CISA-ADP
https://github.com/cthackers/adm-zip/commit/491600683dacb6cb9fe0718a0eeb9cb5eb49afa6	[email protected]
https://github.com/cthackers/adm-zip/releases/tag/v0.6.1	[email protected]
https://github.com/cthackers/adm-zip/security/advisories/GHSA-7q85-xj36-vmfc	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-789	Memory Allocation with Excessive Size Value	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 18, 2026	CVE Modified	CISA-ADP
Sep 18, 2026	New CVE Received	[email protected]