CVE-2026-64606: CWE-502 Deserialization of Untrusted Data in Apache Software Foundation 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.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-64606) involves deserialization of untrusted data in Apache Fory versions before 1.4.0. Specifically, it allows attackers to bypass class-registration checks during the deserialization of Java lambda expressions, affecting only the lambda capture class. This can lead to severe consequences including full compromise of the application due to arbitrary code execution or other malicious behavior. The vulnerability is classified under CWE-502 (Deserialization of Untrusted Data).
Potential Impact
Successful exploitation can result in complete compromise of confidentiality, integrity, and availability of the affected system, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). This means an unauthenticated remote attacker can exploit the vulnerability without user interaction, potentially executing arbitrary code or causing denial of service.
Mitigation Recommendations
Users should upgrade Apache Fory to version 1.4.0 or later, where this vulnerability has been fixed. No other mitigations are specified. Patch status is confirmed by the vendor advisory recommending upgrade to 1.4.0.
CVE-2026-64606: CWE-502 Deserialization of Untrusted Data in Apache Software Foundation Apache Fory
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 v3.1
Score 9.8critical
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-64606) involves deserialization of untrusted data in Apache Fory versions before 1.4.0. Specifically, it allows attackers to bypass class-registration checks during the deserialization of Java lambda expressions, affecting only the lambda capture class. This can lead to severe consequences including full compromise of the application due to arbitrary code execution or other malicious behavior. The vulnerability is classified under CWE-502 (Deserialization of Untrusted Data).
Potential Impact
Successful exploitation can result in complete compromise of confidentiality, integrity, and availability of the affected system, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). This means an unauthenticated remote attacker can exploit the vulnerability without user interaction, potentially executing arbitrary code or causing denial of service.
Mitigation Recommendations
Users should upgrade Apache Fory to version 1.4.0 or later, where this vulnerability has been fixed. No other mitigations are specified. Patch status is confirmed by the vendor advisory recommending upgrade to 1.4.0.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-qwm7-r3rv-3hw8
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64606"]
- Ecosystems
- []
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
Threat ID: 6a5fd15c1010f89cc21ca17a
Added to database: 07/21/2026, 20:06:52 UTC
Last enriched: 07/21/2026, 20:20:22 UTC
Last updated: 09/02/2026, 22:52:13 UTC
Views: 75
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