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CVE-2026-122146 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

A weakness has been identified in 101arrowz fflate up to 0.8.3. This issue affects the function unzipSync of the file esm/index.mjs. This manipulation causes memory corruption. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:7.3 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/ictrun/java/issues/9	[email protected]	ExploitIssue TrackingTechnical Description
https://vuldb.com/cve/CVE-2026-122146	[email protected]	AdvisoryPermission Required
https://vuldb.com/submit/1027352	[email protected]	Issue TrackingPermission Required
https://vuldb.com/vuln/431150	[email protected]	AdvisoryPermission Required
https://vuldb.com/vuln/431150/cti	[email protected]	AdvisoryContent Wall

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer	[email protected]

Affected Products

Product	Versions
101arrowz fflate	<= 0.8.3 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Workaround:low effort Use the `filter` callback to limit both the name and the declared size, ensuring that only entries with names starting with 'expected/' and an original size less than 4 MiB are processed.

Change History

2 change records found show changes

Date	Action	Recorded By
Nov 5, 2026	CVE Modified	CISA-ADP
Nov 5, 2026	New CVE Received	[email protected]