CVE-2021-47952
Critical · 9.8CVSS
9.8
EPSS
0.7%
Published
May 16, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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