CVE-2026-64606

Deserialization of untrusted data vulnerability that may allow class-registration checks to be bypassed during Java lambda deserialization. Only lambda capture class is affected This issue affects Apache Fory: from before 1.4.0. Users are recommended to upgrade to version 1.4.0, which fixes the issue.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - security@apache.org

Published

2026-07-21

Last modified

2026-10-24

Weaknesses

CWE-502

Affected products

• Fory (Apache)
• Apache Fory (Apache Software Foundation)

References

• https://lists.apache.org/thread/py6fbvm9nk1gxdd85rbzbozwzfh0jrsc
• http://www.openwall.com/lists/oss-security/2026/07/21/4