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Source-checkedGameplay & overhauls

SerializationIsBad

by dogboy21 · for Minecraft

A Minecraft coremod aiming to patch serious security vulnerabilities found in many different mods

492KDownloads
3 yr agoLast updated
MITLicense
ForgeLoaders
Add to my serverDownload from Modrinth

About SerializationIsBad

From Modrinth

A Minecraft coremod aiming to patch serious security vulnerabilities found in many different mods

A few weeks ago, a very critical vulnerability allowing arbitrary remote code execution on clients and servers (and therefor even all connected clients on a server) was discovered in many Minecraft mods.

More details on the whole topic as well as a list of all currently known affected mods is available here

Highlights

From source data

Game versions

Supports 68 Minecraft versions, the newest being 1.20.4.

Loaders

Runs on Forge.

Footprint

Rated a light load on a server.

SerializationIsBad on Nxeon

From our catalogue
One-click install
Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
Server side
Optional on the server
Server type needed
Forge
Server load
light
Smallest plan we suggest
Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build
1.5.2, released 2024-03-16

Game versions by loader

LoaderGame versionsNewest
Forge1.6.1 to 1.20.4 (68 versions)1.20.4

From 4 recorded builds of SerializationIsBad.

Recent builds

BuildReleasedGame versionsLoaders
1.5.22024-03-161.6.1 to 1.20.4 (68 versions)Forge
1.52023-08-291.6.1 to 1.20.1 (65 versions)Forge
1.42023-08-101.6.1 to 1.20.1 (65 versions)Forge
1.32023-07-301.7.2 to 1.20.1 (62 versions)Forge

Run SerializationIsBad on a Minecraft server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog
Listed on Modrinth as “Mods”

Gameplay & overhauls

New mechanics, content and overhauls that change how the game plays.

Works on a server

From source side support

Modrinth lists server-side support for SerializationIsBad as optional: it can run on a server, but isn’t required there.

Compatibility

Game
Minecraft
Loaders
Forge
Runs on
Serveroptional on the server
Game versions
1.20.4 and 67 earlier

Verified at the source

  • ✓ModrinthOfficial listing, checked 2026-10-01Open ↗
  • ✓Authordogboy21, as published on Modrinth
  • ✓LicenseMITFree

SerializationIsBad, answered

Generated from the mod’s own source data.

Do my players need to install SerializationIsBad?

Modrinth lists server-side support for SerializationIsBad as optional: it can run on a server, but isn’t required there.

Which loaders does it support?

Forge.

Is it free?

Yes. SerializationIsBad is free to download from Modrinth. Its license is MIT.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

NxLabs

Run SerializationIsBad on a Minecraft server.

Deploy in about a minute from $4.99 a month, then add SerializationIsBad in one click.

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