EUVD-2026-82471

A missing lower-bound validation in the bsonnewfrombuffer function of libbson allows an integer underflow when processing BSON data with a zero-length prefix. The function reads a 32-bit document length from the input buffer but does not verify that the value is at least 5 the minimum valid BSON...

CVE-2026-93395

CVE-2026-93395 is an integer underflow in the bson_new_from_buffer() function of libbson (the MongoDB C driver's BSON library). The function reads a 32-bit document length from input but fails to verify it is at least 5 (the minimum valid BSON document size). When the length field is zero , the e...