UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Affected versions were found to improperly decode certain characters. JSON strings that contain escaped surrogate characters not part of a proper surrogate pair were decoded incorrectly. Besides corrupting strings, this allowed for potential key confusion and value overwriting in dictionaries. All users parsing JSON from untrusted sources are vulnerable. From version 5.4.0, UltraJSON decodes lone surrogates in the same way as the standard library's `json` module does, preserving them in the parsed output. Users are advised to upgrade. There are no known workarounds for this issue.
History

No history.

cve-icon MITRE Information

Status: PUBLISHED

Assigner: GitHub_M

Published: 2022-07-05T17:35:11

Updated: 2022-08-03T03:08:16

Reserved: 2022-05-18T00:00:00


Link: CVE-2022-31116

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2022-07-05T18:15:08.023

Modified: 2023-11-07T03:47:32.050


Link: CVE-2022-31116

JSON object: View

cve-icon Redhat Information

No data.

CWE