There is an out-of-bounds write in checkType located in etc.c in w3m 0.5.3. It can be triggered by sending a crafted HTML file to the w3m binary. It allows an attacker to cause Denial of Service or possibly have unspecified other impact.
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2022-38223.json"