CVE-2026-64606

Critical

Description

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.

SeverityCritical

CVSS9.8

Exploit probability—

Product

Apache Fory

PublishedJul 21, 2026

First seenJul 21, 2026

Weakness typeCWE-502Deserialization of untrusted data

How to fix

Update

apache fory1.4.0 or later

Vendor advisories

lists.apache.org/thread/py6fbvm9nk1gxdd85rbzbozwzfh0jrsc

Affected products

Product	Affected versions	Fixed in
apache fory	0.5.0 ≤ v < 1.4.0	1.4.0

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