What is GHSA-8w3v-jcfp-ffw5?

GHSA-8w3v-jcfp-ffw5 is a security advisory published by GitHub Security Advisories with Critical severity. Out-of-bounds read via sun.misc.Unsafe in Apache Fory. When out-of-band zero-copy deserialization...

Which CVE IDs does GHSA-8w3v-jcfp-ffw5 cover?

GHSA-8w3v-jcfp-ffw5 covers the following CVE IDs: CVE-2026-64609. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-8w3v-jcfp-ffw5?

GHSA-8w3v-jcfp-ffw5 has a CVSS v3 base score of 9.1, published by GitHub Security Advisories.

GHSA-8w3v-jcfp-ffw5CriticalCVSS 9.1

Out-of-bounds read via sun.misc.Unsafe in Apache Fory. When out-of-band zero-copy deserialization...

Vendor

GitHub Security Advisories

Published

July 21, 2026

Last Modified

July 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-64609 →

📋 Description

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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-64609
https://lists.apache.org/thread/rdv22ks3b0cxh0r52w3ghxgkxqso3f1b
https://github.com/advisories/GHSA-8w3v-jcfp-ffw5