Feed/CVE-2026-48207
CVE-2026-48207CRITICALCVSS 9.8

Apache Fory PyFory Deserialization of Untrusted Data

Published May 21, 2026·Updated Jun 30, 2026

NVD Description

Fory PyFory's ReduceSerializer could bypass documented DeserializationPolicy validation hooks during reduce-state restoration and global-name resolution. An application is vulnerable if it deserializes attacker-controlled data using PyFory Python-native mode with strict mode disabled and relies on DeserializationPolicy to restrict unsafe classes, functions, or module attributes. This issue affects Apache Fory: from before 1.0.0. Mitigation: Users of Apache Fory are recommended to upgrade to version 1.0.0 or later, which enforces DeserializationPolicy validation for the affected ReduceSerializer paths and thus fixes this issue.

Affected Packages (1)

pyforyPYPI
From 0.13.0
Fixed in 1.0.0

CVSS Vector

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

References

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