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CVE-2021-47952

CRITICAL CVSS: 9.8 Published: 2026-05-16 Modified: 2026-07-15

Description

python jsonpickle 2.0.0 contains a remote code execution vulnerability that allows attackers to execute arbitrary Python commands by deserializing malicious JSON payloads containing py/repr objects. Attackers can craft JSON strings with py/repr directives that invoke the eval function during deserialization to execute arbitrary code.

Affected Platforms

Unknown

Weakness Type

CWE-94, CWE-502

References