CVE-2021-45958
UltraJSON (aka ujson) 4.0.2 through 5.0.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode).
Date published : 2021-12-31
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36009
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/ujson/OSV-2021-955.yaml