CVE-2026-54903: Integer Overflow or Wraparound

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior to 3.17.2, Oj.load is vulnerable to heap corruption when parsing a JSON string longer than 2 GB. An integer overflow in bufappendstring buf.h:61 converts the string length to a large negative sizet,...

Integer Overflow or Wraparound

Overview Affected versions of this package are vulnerable to Integer Overflow or Wraparound via the bufappendstring function. An attacker can cause heap corruption and process crashes by supplying a specially crafted JSON string larger than 2 GB, which triggers an integer overflow and results in...