What the vulnerability does

01Description

lucy-xss-filter before commit 7c1de6d allows an attacker to induce server-side HEAD requests to arbitrary URLs when the ObjectSecurityListener or EmbedSecurityListener option is enabled and embed or object tags are used with a src attribute missing a file extension.

Key dates

02Disclosure timeline

January 16, 2026 CVE published
January 16, 2026 Record updated