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CVE-2026-64609

⛔ critical
🔍 Scan for this CVE
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 t

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.

CVSS Score
9.1
Critical
EPSS Score
0.5
Exploit Probability
Published Date
2026-07-21
First Seen: 2026-07-22
📊 Relative Risk Intelligence

This CVE is High Risk - more severe than 87.6% of all 361,609 vulnerabilities in our database.

#44,876
Top 25% most severe
Severity Percentile
🎯 CISA SSVC Assessment Updated: Jul 21, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
YES
Can be exploited automatically
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
Feng Ning from Innora Security Research (reporter)
SSVC data provided by CISA
Last Modified 2026-07-27
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CWE IDs (Weakness Types)
CWE-125

📦 Affected Products 1

Vendor Product Status Affected Versions
apache fory Affected
> 0.5.0 < 1.4.0

🔗 References 2

https://lists.apache.org/thread/rdv22ks3b0cxh0r52w3g...
Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/07/21/6
Third Party Advisory

🔗 Related CVEs 6

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-71558 ⛔ critical 9.8 0.7 Heap type confusion vulnerability in Apache Fory C++ deserialization. This issue affects Apache Fory C++ versions from ... 2026-08-07
CVE-2026-71559 ⚠️ high 7.5 0.6 Deserialization of Untrusted Data vulnerability in the Go implementation of Apache Fory allows an attacker to cause a de... 2026-08-07
CVE-2026-71560 ⛔ critical 9.1 0.6 Out-of-bounds Read vulnerability in Apache Fory C++ deserialization. This issue affects Apache Fory C++ versions from 0... 2026-08-07
CVE-2026-64608 ⛔ critical 9.8 0.5 Heap type confusion and out-of-bounds read/write in the Apache Fory C++ implementation. When deserializing data in compa... 2026-07-21
CVE-2026-64606 ⛔ critical 9.8 0.6 Deserialization of untrusted data vulnerability that may allow class-registration checks to be bypassed during Java lamb... 2026-07-21
CVE-2026-60080 ⚠️ high 7.3 0.4 Use After Free vulnerability in the Rust deserialization logic of Apache Fory. This issue affects Apache Fory from 0.13.... 2026-07-21
These CVEs affect the same products