CVE-2026-64608
Received Received - Intake

Heap Type Confusion in Apache Fory C++

Publication date: 2026-07-21

Last updated on: 2026-07-21

Assigner: Apache Software Foundation

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.

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Meta Information

Published
2026-07-21
Last Modified
2026-07-21
Generated
2026-07-21
AI Q&A
2026-07-21
EPSS Evaluated
N/A
NVD
CVE-2026-64608
EUVD
EUVD-2026-46171

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
apache fory From 0.14.0 (inc) to 1.4.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-843 The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

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Executive Summary

This is a heap type confusion and out-of-bounds read/write vulnerability in the Apache Fory C++ implementation. When deserializing data in compatible mode, the field-skip paths fail to validate declared field types against actual data, leading to type confusion and out-of-bounds memory access. Only the C++ version is affected; other language implementations are not vulnerable.

Detection Guidance

This vulnerability affects Apache Fory C++ versions from 0.14.0 before 1.4.0. Detection involves checking installed versions and monitoring for unusual memory access patterns during deserialization. No specific commands are provided in the context.

Impact Analysis

This vulnerability could allow attackers to execute arbitrary code, crash applications, or access sensitive memory. If you use Apache Fory C++ versions between 0.14.0 and 1.3.x, your system may be exposed to remote code execution or denial-of-service attacks through maliciously crafted input data.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR or HIPAA if it involves processing or storing sensitive data that relies on Apache Fory for serialization or deserialization. A heap type confusion or out-of-bounds access might lead to data corruption, unauthorized access, or denial of service, which could violate confidentiality or integrity requirements under these regulations.

Mitigation Strategies

Upgrade Apache Fory C++ to version 1.4.0 or later to address the heap type confusion and out-of-bounds read/write issues.

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