Security Bulletin: UltraJSON Memory Leak in Large Integer Parsing Enables Denial of Service

Summary UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Versions 5.4.0 through 5.11.0 contain an accumulating memory leak in JSON parsing large outside of the range -2^63, 2^64 - 1 integers. The leaked memory is a copy of the string form of the intege...