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CVE-2026-64608— Apache Fory: Heap type confusion and out-of-bounds read/write in C++ compatible-mode field-skip paths

Quick assessment

Affected
Apache Software Foundation Apache Fory
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Fory C++是美国Apache基金会的一款开发框架。 Apache Fory C++ 0.14.0版本至1.4.0之前版本存在安全漏洞，该漏洞源于在兼容模式下反序列化数据时，field-skip路径未正确验证声明的字段类型与实际数据，导致类型混淆和越界内存访问。

AI Predicted 8.8 Difficulty: Hard EPSS 0.81% · P55

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apache Software Foundation Apache Fory 0.14.0< 1.4.0 affected
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I. Basic Information for CVE-2026-64608

Vulnerability Information
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Vulnerability Title
Apache Fory: Heap type confusion and out-of-bounds read/write in C++ compatible-mode field-skip paths
Source: CVE Program / CVE List V5
Vulnerability Description
Heap type confusion and out-of-bounds read/write in the Apache Fory C++ implementation. When deserializing data in compatible mode, the field-skip paths do not correctly validate the declared field types against the actual data, so input with an inconsistent schema can cause type confusion and out-of-bounds memory access. Only the C++ implementation is affected; other language implementations of Apache Fory are not. This issue affects Apache Fory C++: from 0.14.0 before 1.4.0. Users are recommended to upgrade to version 1.4.0, which fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
使用不兼容类型访问资源(类型混淆)
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Fory C++ 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Fory C++是美国Apache基金会的一款开发框架。 Apache Fory C++ 0.14.0版本至1.4.0之前版本存在安全漏洞，该漏洞源于在兼容模式下反序列化数据时，field-skip路径未正确验证声明的字段类型与实际数据，导致类型混淆和越界内存访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache Fory 0.14.0 ~ 1.4.0 -

II. Public POCs for CVE-2026-64608

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III. Intelligence Information for CVE-2026-64608

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Mailing List Discussions for CVE-2026-64608 (1)

Same Patch Batch · Apache Software Foundation · 2026-07-21 · 4 CVEs total

CVE-2026-60080 Apache Fory: Rust MetaString heap use-after-free
CVE-2026-64606 Apache Fory, Apache Fory: Class-registration bypass through an auto-admitted SerializedLam
CVE-2026-64609 Apache Fory, Apache Fory: Out-of-Bounds Read via sun.misc.Unsafe in zero-copy java deseria

IV. Related Vulnerabilities

Same product: Apache Fory
Same vendor: Apache Software Foundation
Same weakness: CWE-843

V. Comments for CVE-2026-64608

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