CVE-2026-50076 — CRITICAL (9.1)

Q: How severe is CVE-2026-50076?

CVE-2026-50076 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2026-50076?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Fory.

Vulnerability Description

Deserialization of Untrusted Data in the Java replace-resolve path in Apache Fory fory-core Java SDK before 1.1.0 on Java/JVM platforms allows a remote attacker to bypass class registration, TypeChecker, and DisallowedList checks and invoke classpath-present readResolve/readExternal hooks via crafted Fory serialized data. Users are recommended to upgrade to version 1.1.0 or later, which fixes this issue.

CVSS Score

9.1

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

NONE

Affected Products

Vendor	Product	Versions
Apache	Fory	< 1.1.0

Related Weaknesses (CWE)

CWE-502

References

https://fory.apache.org/securityVendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/04/4Mailing ListThird Party Advisory

FAQ

What is CVE-2026-50076?

CVE-2026-50076 is a vulnerability with a CVSS score of 9.1 (CRITICAL). Deserialization of Untrusted Data in the Java replace-resolve path in Apache Fory fory-core Java SDK before 1.1.0 on Java/JVM platforms allows a remote attacker to bypass class registration, TypeCheck...

How severe is CVE-2026-50076?

CVE-2026-50076 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-50076?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Fory.