CVE-2026-50076CWE-502

Apache Fory: Java ReplaceResolverSerializer deserialization checks bypass

Critical · published June 4, 2026

CVSS v3.1
9.1
EPSS
1%
Percentile
54.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00742 · 54.2th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-06-04T16:09Z
EPSS history
Timeline
  • 04 JUN 16:09Z
    Apache Fory: Java ReplaceResolverSerializer deserialization checks bypass
    cvelistv5