Bug 2478170 (CVE-2021-47952)

Summary: CVE-2021-47952 python-jsonpickle: python-jsonpickle: Arbitrary Code Execution via Malicious JSON Deserialization
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedCC: dschmidt, erezende, jlanda, kshier, simaishi, smcdonal, stcannon, teagle, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in python-jsonpickle. A remote attacker can exploit this vulnerability by crafting and sending malicious JSON payloads. When these payloads, which contain specially crafted py/repr objects, are deserialized, they can trigger the execution of arbitrary Python commands and system commands. This can lead to arbitrary code execution on the affected system.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-05-16 16:01:53 UTC
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.