https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-07T23:20:47.632374+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2022-31117 CVE-2022-31117 — Double free of buffer during string decoding in ujson 2026-10-07T23:20:47.656491+00:00

Affected: ultrajson

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.