CVE-2026-64608CWE-502CWE-787CWE-843insecure-deserialization

CVE-2026-64608

Critical · published July 21, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
56.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00806 · 56.3th percentile
Weaknesses
CWE-502 · Deserialization of Untrusted Data; CWE-787 · Out-of-bounds Write; CWE-843 · Access of Resource Using Incompatible Type ('Type Confusion')
Published
2026-07-21T14:16Z
Affected products (1)
ProductVersionsFixed in
apache/fory≥ 0.14.0, < 1.4.01.4.0
References (2)
https://lists.apache.org/thread/wl05slf57zzoq1s4pg4tk6nx6mjyjr4b · [email protected]http://www.openwall.com/lists/oss-security/2026/07/21/5 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 21 JUL 09:34Z
    Apache Fory: Heap type confusion and out-of-bounds read/write in C++ compatible-mode field-skip paths
    cvelistv5