CVE-2026-64609: Out-of-bounds read via sun.misc.Unsafe in Apache Fory. When out-of-band zero-copy deserialization is used, readAlignedVarUint() can read beyond the bounds of…

PriorityP357critical9.1CVSS 3.1

AVNACLPRNUINSUCHINAH

EPSS

0.34%

27.0th percentile

Out-of-bounds read via sun.misc.Unsafe in Apache Fory. When out-of-band zero-copy deserialization is used, readAlignedVarUint() can read beyond the bounds of the underlying buffer. Out-of-band zero-copy deserialization is an opt-in feature; applications that do not use it are not affected. This issue affects Apache Fory (formerly Apache Fury): from 0.5.0 before 1.4.0. Versions before 0.11.0 were published under the Maven coordinates org.apache.fury:fury-core. Users are recommended to upgrade to version 1.4.0, which fixes the issue.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
apache	fory	>= 0.5.0 < 1.4.0	1.4.0
apache_software_foundation	apache_fory	>= 0.11.0 < 1.4.0	1.4.0
apache_software_foundation	apache_fory	>= 0.5.0 < 0.11.0	0.11.0

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.