CVE-2026-71847 | Ruby JSON up to 2.21.1 Resumable Parser partial_value use after free

A vulnerability identified as problematic has been detected in Ruby JSON up to 2.21.1. Affected is the function partial_value of the component Resumable Parser. This manipulation causes use after free.

This vulnerability is tracked as CVE-2026-71847. The attack is possible to be carried out remotely. No exploit exists.

You should upgrade the affected component.