Patch Forecast
Yellow warning
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CVE-2026-122146

A weakness has been identified in 101arrowz fflate up to 0.8.3

Risk score
49/100
CVSS
7.3 v3.1
Published
5 Nov 2026

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What to know

What it is
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 wa…
Affected
See advisory
Fix
Apply the vendor's security update; see the linked advisory.
Exploitation
No known exploitation

Why it is Yellow

  • CVSS 7.3 high
  • Remotely exploitable without logging in

References

Original 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.

Last activity 5 Nov 2026. Patch Forecast updates every hour.