CVE-2026-64609 PUBLISHED

Apache Fory, Apache Fory: Out-of-Bounds Read via sun.misc.Unsafe in zero-copy java deserialization

Assigner: apache
Reserved: 20.07.2026 Published: 21.07.2026 Updated: 21.07.2026

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.

Product Status

Vendor Apache Software Foundation
Product Apache Fory
Versions Default: unaffected
  • affected from 0.11.0 to 1.4.0 (excl.)
Vendor Apache Software Foundation
Product Apache Fory
Versions Default: unaffected
  • affected from 0.5.0 to 0.11.0 (excl.)

Credits

  • Feng Ning from Innora Security Research reporter

References

Problem Types

  • CWE-125 Out-of-bounds Read CWE