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.
Published: 2026-11-05
Score: 6.9 Medium
EPSS: n/a
KEV: No
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Remediation

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Advisories

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History

Thu, 05 Nov 2026 01:00:00 +0000

Type Values Removed Values Added
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.
Title 101arrowz fflate index.mjs unzipSync memory corruption
First Time appeared 101arrowz
101arrowz fflate
Weaknesses CWE-119
CPEs cpe:2.3:a:101arrowz:fflate:*:*:*:*:*:*:*:*
Vendors & Products 101arrowz
101arrowz fflate
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C'}

cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'}

cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}


Subscriptions

101arrowz Fflate
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-11-05T00:45:26.038Z

Reserved: 2026-11-04T18:21:49.726Z

Link: CVE-2026-122146

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-05T01:17:22.143

Modified: 2026-11-05T01:17:22.313

Link: CVE-2026-122146

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-05T03:00:16Z

Weaknesses