9.1

CVE-2026-50076: apache software foundation apache fory Deserialization of Untrusted Data

CVSS: 9.1v3.1CriticalAnalyzed
AliasesCGA-4pmr-rhhw-6wwfCGA-9x74-v67h-hq5pGHSA-8f39-v287-78jf
Published 04-06-2026Last modified 04-06-2026
Open JSON

Vulnerability summary

CVE-2026-50076 is a critical (CVSS 9.1) Deserialization of Untrusted Data vulnerability in apache software foundation apache fory. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 53.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.74%
0%100%
Low · +0.22 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-06-2026
    PublishedVulnerability first disclosed.
  2. 04-06-2026
    Last modifiedVulnerability information updated.

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 metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.74%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

+0.22 pp

From 0.52% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.74%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Apache1 product
Apache software foundation1 product
Chainguard1 product
  • seata-serverAll versions (No fix recorded)
Org.apache.fory1 product
  • fory-core< 1.1.0

4 vendors · 4 products

References

4 links