1.0.0 Forge 1.13.x-1.16.x is a beta file of the Minecraft mod Log4J2 JNDI Exploit Fix for Forge, made for Minecraft 1.16-Snapshot, 1.16.3, 1.13.1, 1.15-Snapshot, 1.16.1, 1.14.4, 1.14.1, 1.14.3, 1.15, 1.16, 1.13, 1.16.5 and more. It was published on December 10, 2021 and is 0 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the Log4J2 JNDI Exploit Fix mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.