DEBIAN-CVE-2026-54903

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,...

PT-2026-51089

Name of the Vulnerable Software and Affected Versions Oj versions prior to 3.17.2 Description Oj is a JSON parser and Object marshaller for Ruby. The Oj.load function is susceptible to heap corruption when processing a JSON string exceeding 2 GB. An integer overflow occurs within the buf append...

Oj - Integer Overflow in Oj.load 2GB String Handling

Summary 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, causing memcpy to copy an astronomically large amount of data out of bounds. This crashes the process...