jsonpickle through 1.4.2 allows remote code execution during deserialization of a malicious payload through the decode() function. This CVE is disputed by the project author as intended functionality.
// cvss v3.1 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Checked 2026-11-06 at 22:22 UTC. The most recent advisory here was published 2022-05-24. Updated continuously from NVD, GHSA, OSV and CNA feeds.