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Vulnerability record · CVE-2026-64606 · published 21 July 2026

CVE-2026-64606: Apache fory deserialization of untrusted data vulnerability

Apache · Fory

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.

9.8 CVSS 3.1 Critical EPSS 0.78% · top 45.8% CWE-502 · Deserialization of untrusted data
9.8CVSS 3.1 base score
0.78%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
27 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://lists.apache.org/thread/py6fbvm9nk1gxdd85rbzbozwzfh0jrsc Vendor AdvisoryIssue Tracking
http://www.openwall.com/lists/oss-security/2026/07/21/4 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-64606), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.