What is CVE-2026-64608?

CVE-2026-64608 is a critical-severity vulnerability in Apache Software Foundation Fory, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-07-21.

How severe is CVE-2026-64608?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Apache Software Foundation Fory

CVE-2026-64608

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 w…

Vulnerability class: Insecure Deserialization

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Apache Software Foundation Fory — versions 0.14.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data
CWE-787 — Out-of-bounds Write
CWE-843 — Access of Resource Using Incompatible Type (Type Confusion)

References

security@apache.org (vendor-advisory)

Frequently asked questions

What is CVE-2026-64608?: CVE-2026-64608 is a critical-severity vulnerability in Apache Software Foundation Fory, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2026-07-21.
How severe is CVE-2026-64608?: Critical severity. CVSS v3 base score is 9.8 out of 10.