CVE-2021-47952
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.
Published:May 16, 2026
Last Modified:Jul 28, 2026
EPS:May 16, 2026
EPSS Score:0.00696
CVSS Score:9.8
Affected Products
Vendor
Product
Action
Vendor
Jsonpickle Project
Product
Jsonpickle
Jsonpickle Project
Jsonpickle
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
