CVE-2026-64608

CriticalCVSS 9.8/10Last modified Oct 24, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-502 CWE-787 CWE-843

Affected software

Vendor	Product	Versions
Apache Software Foundation	Apache Fory	>= 0.14.0, < 1.4.0

References

https://lists.apache.org/thread/wl05slf57zzoq1s4pg4tk6nx6mjyjr4bMailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/07/21/5Mailing List, Third Party Advisory

Timeline

Published: Jul 21, 2026
Last modified: Oct 24, 2026
NVD status: Analyzed

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