CVE-2026-64606
Apache Fory, Apache Fory: Class-registration bypass through an auto-admitted SerializedLambda capturing interface
CVE-2026-64606 is a critical vulnerability (CVSS 9.8) in Apache Fory, published July 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.78%, the 56th percentile. No source names a fixed version.
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Apache Fory, Apache Fory: Class-registration bypass through an auto-admitted SerializedLambda capturing interface
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.
- Record
CVE-2026-64606- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2026-46173
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.
- Record
EUVD-2026-46173- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-qwm7-r3rv-3hw8
Deserialization of untrusted data vulnerability that may allow class-registration checks to be...
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.
- Record
GHSA-qwm7-r3rv-3hw8- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-64606- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
Affected products
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-02 | created | CVE List, EUVD, GitHub Advisories, NVD |