CVE-2021-47952
Deferred Deferred - Pending Action

BaseFortify

Vulnerability report for CVE-2021-47952, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-05-16

Last updated on: 2026-06-27

Assigner: VulnCheck

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.

CVSS Scores

EPSS Scores

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Percentile:

Meta Information

Published
2026-05-16
Last Modified
2026-06-27
Generated
2026-06-30
EPSS Evaluated
2026-06-28
NVD

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Attack-Flow Graph

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