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CVE-2026-50076

Apache Fory insecure deserialization

9.1 CRITICALEPSS 0.74%
  1. Published4 Jun 2026

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Apache Fory< 1.1.0

Remediation

Fixed in
Apache Fory≥ 1.1.0
Patch & vendor advisories

References

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Frequently asked

Is CVE-2026-50076 being actively exploited?

CVE-2026-50076 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.74%.

How severe is CVE-2026-50076?

CVE-2026-50076 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.74% probability of exploitation.

Which products are affected by CVE-2026-50076?

Affected products include Apache Fory.

How do I fix CVE-2026-50076?

Upgrade affected software to a fixed version, for example Apache Fory 1.1.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-50076 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.