TI-2026-46172 Aliases CVE-2026-64609 GHSA-8w3v-jcfp-ffw5

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

MEDIUM 47CWE-125Published 2026-07-21 · Updated 2026-07-21

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00777 56th percentileScored 2026-11-07

Fix Fixed Apache Fory (Apache Software Foundation): 1.4.0, 0.11.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Apache	Apache Fory	0.11.0 to before 1.4.0	1.4.0	Patch available	CNA
Apache	Apache Fory	0.5.0 to before 0.11.0	0.11.0	Patch available	CNA

Apache Fory VendorApache Affected 0.11.0 to before 1.4.0 Fixed in 1.4.0 Patch available CNA
Apache Fory VendorApache Affected 0.5.0 to before 0.11.0 Fixed in 0.11.0 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:apache:fory::::::::	0.5.0 to before 1.4.0	Vulnerable	Apache

cpe:2.3:a:apache:fory:*:*:*:*:*:*:*:* Versions 0.5.0 to before 1.4.0 Vulnerable ·Apache

Remediation

Fix · CNA Apache Fory (Apache Software Foundation) Fixed in 1.4.0
Fix · CNA Apache Fory (Apache Software Foundation) Fixed in 0.11.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-07-21
Apache Fory 1.4.0
3 records Highest priority Priority MEDIUM 3 MEDIUM
Other records, highest priority first
- TI-2026-46171 Apache Fory: Heap type confusion and out-of-bounds read/write in C++ compatible-mode field-skip pathsPriority MEDIUM 50
- TI-2026-46169 Apache Fory, Apache Fory: Class-registration bypass through an auto-admitted SerializedLambda capturing interfacePriority MEDIUM 50
Show all 3 records →
Release · 2026-07-21
Apache Fory 0.11.0
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2026-46169 Apache Fory, Apache Fory: Class-registration bypass through an auto-admitted SerializedLambda capturing interfacePriority MEDIUM 50
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-64609
2026-10-03 Alias added: GHSA-8w3v-jcfp-ffw5

References

Advisory 2

TI-2025-38065 Apache Fory, Apache Fory: Python RCE via unguarded pickle fallback serializer in pyfory CVSS 3.1CRITICAL 9.8
TI-2026-50130 Apache Fory: Heap type confusion in C++ polymorphic smart-pointer deserialization CVSS 3.1CRITICAL 9.8
TI-2026-46171 Apache Fory: Heap type confusion and out-of-bounds read/write in C++ compatible-mode field-skip paths CVSS 3.1CRITICAL 9.8
TI-2026-46169 Apache Fory, Apache Fory: Class-registration bypass through an auto-admitted SerializedLambda capturing interface CVSS 3.1CRITICAL 9.8
TI-2026-35617 Apache Fory: PyFory ReduceSerializer Incomplete Policy Enforcement CVSS 3.1CRITICAL 9.8
TI-2026-50132 Apache Fory: Out-of-bounds heap read in C++ struct deserializer tagged-int fast-path CVSS 3.1CRITICAL 9.1

See all 10 →

Sources

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