🛡️ CVE-2022-31117
🟡 CVSS 5.9 — Medium ✅ No Known Exploit CWE-415 NVD
5.9
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. In versions prior to 5.4.0 an error occurring while reallocating a buffer for string decoding can cause the buffer to get freed twice. Due to how UltraJSON uses the internal decoder, this double free is impossible to trigger from Python. This issue has been resolved in version 5.4.0 and all users should upgrade to UltraJSON 5.4.0. There are no known workarounds for this issue.

Details

Severity MEDIUM
CVSS Score 5.9
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-415
Public Exploit ✅ No
Source NVD
Published 2022-07-05
Updated 2026-06-08
Modified 2024-11-21

Affected Packages

Software From version Fixed in
fedora
ujson 5.4.0
ultrajson 5.4.0

References

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