Understanding and Defending Against CVE-2026-6827: Multiple Security Issues in justhtml
CVE-2026-6827 is a medium-severity vulnerability in the justhtml library, affecting versions before 1.17.0. It involves multiple security issues in sanitization, serialization, and programmatic DOM handling, potentially allowing for cross-site scripting (XSS) attacks. This analysis provides an in-depth look at the vulnerability, its exploitation mechanics, and defensive strategies.