CVE-2026-64609: critical vulnerability in Apache Fory
Apache Fory, Apache Fory: Out-of-Bounds Read via sun.misc.Unsafe in zero-copy java deserialization
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.1epss 0.8%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Affected products
Apache Software Foundation · Apache ForyRelated CVEs — Apache Fory
In the same product, most dangerous first.
CVE-2025-61622CRITICALApache Fory, Apache Fory: Python RCE via unguarded pickle fallback serializer in pyforyEPSS 49.0%CVE-2026-71558CRITICALApache Fory: Heap type confusion in C++ polymorphic smart-pointer deserializationEPSS 1.0%CVE-2026-64608CRITICALApache Fory: Heap type confusion and out-of-bounds read/write in C++ compatible-mode field-skip pathsEPSS 0.8%CVE-2026-71559HIGHApache Fory: Uncaught panic (remote DoS) in Go meta-string decoder from untrusted metadataEPSS 0.8%CVE-2026-64606CRITICALApache Fory, Apache Fory: Class-registration bypass through an auto-admitted SerializedLambda capturing interfaceEPSS 0.8%CVE-2026-71560CRITICALApache Fory: Out-of-bounds heap read in C++ struct deserializer tagged-int fast-pathEPSS 0.8%