CVE-2026-122146mediumCWE-119

CVE-2026-122146: medium-severity vulnerability in 101arrowz fflate

101arrowz fflate index.mjs unzipSync memory corruption

Published

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

30Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.9
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.
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
Affected products
101arrowz · fflate
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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