Improper access control in Apache Fory - CVE-2026-64606
Published: August 25, 2026
Vulnerability identifier: #VU145183
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-64606
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass class-registration checks during deserialization.
The vulnerability exists due to improper access control in Java lambda deserialization when processing untrusted serialized data. A remote attacker can supply a specially crafted serialized lambda to bypass class-registration checks during deserialization.
Only the lambda capture class is affected.
Affected software
Apache Fory
How to mitigate CVE-2026-64606
Install security update from vendor's website.
Apache Fory - update to 1.4.0