Ruby oj Gem < 3.17.3 Multiple Vulnerabilities

The version of the oj Ruby gem installed on the remote host is prior to 3.17.3. It is, therefore, affected by multiple vulnerabilities: - Oj::Doceachchild, when invoked recursively over a deeply nested JSON document, overflows a fixed-size stack buffer and aborts the process, leading to DoS...

CVE-2026-54897

A flaw was found in Oj Optimized JSON, a Ruby gem for parsing JSON. This vulnerability, categorized as a heap use-after-free CWE-416, occurs in the Oj::Doc iterators, specifically eachvalue, eachchild, and eachleaf. An attacker could exploit this when a Ruby code block, executed during iteration,...

CVE-2026-54592: Out-of-bounds Read

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior to 3.17.3, Oj::Doceachchild, when invoked recursively over a deeply nested JSON document, overflows a fixed-size stack buffer and aborts the process, leading to DoS. In a two-step chain in...

Out-of-bounds Write

Overview Affected versions of this package are vulnerable to Out-of-bounds Write through recursive calls to the eachchild function when processing deeply nested input. An attacker can cause the process to crash and trigger a denial of service by supplying a specially crafted, deeply nested JSON...