CVE-2024-8381 is a critical type confusion vulnerability in Firefox that occurs when looking up a property name on an object used as the 'with' environment. This flaw affects Firefox versions prior to 130 and Firefox ESR versions prior to 128.2 and 115.15. The vulnerability could be exploited to achieve high-impact consequences including full confidentiality, integrity, and availability compromise. Mozilla has released fixes in Firefox 130 and Firefox ESR 128.2 to address this issue.