LibJS in Ladybird before f5a6704 mishandles the freeing of the vector that arguments_list references, leading to a use-after-free, and allowing remote attackers to execute arbitrary code via a crafted .js file. NOTE: the GitHub README says "Ladybird is in a pre-alpha state, and only suitable for use by developers."
LibJS in Ladybird
Exploit
CVE-2025-47154
NVD
Refer to CVE-2025-47154 NVD advisory