CVE-2021-47952
CRITICAL
NVD
CVSS Score
9.8
Severity
CRITICAL
Published
May 16, 2026
Vendor
unknown
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 system commands and arbitrary code.