Out-of-bounds Read in Apache Software Foundation Fory
CVE-2026-64609
Out-of-bounds read via sun.misc.Unsafe in Apache Fory. When out-of-band zero-copy deserialization is used, readAlignedVarUint() can read beyond the bounds of the underlying buffer. Out-of-band zero-copy deserialization is an opt-in feature…
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
Affected products
- Apache Software Foundation Fory — versions 0.11.0, 0.5.0
Weakness classification (CWE)
References
- security@apache.org (vendor-advisory)
Frequently asked questions
- What is CVE-2026-64609?
- CVE-2026-64609 is a critical-severity vulnerability in Apache Software Foundation Fory, classified under Out-of-bounds Read. CVSS score: 9.1/10. Published 2026-07-21.
- How severe is CVE-2026-64609?
- Critical severity. CVSS v3 base score is 9.1 out of 10.