Is Hytale Safe? The $20,000 PNG RCE Exploit and the 0.5.7 Security Hotfix

If you have been asking "is Hytale safe?" after seeing headlines about a $20,000 exploit, here is the short answer: yes, and the issue is already fixed. On July 22, 2026, the Hytale team disclosed a serious Hytale security flaw in the game client and, in the same breath, confirmed it had already been patched. The vulnerability was a PNG-based remote code execution (RCE) bug, it was reported privately, and the fix shipped the same day it was reported. For a community that lives and breathes multiplayer, this is exactly the kind of story worth understanding rather than fearing. Below we break down what the $20,000 PNG exploit actually was, how Hytale fixed it, and what it means for you when you connect to a server. What the $20,000 Hytale PNG exploit was The flaw lived in how the Hytale client handled PNG image files that servers send to the game. Servers routinely push images to your client for things like custom textures, media, and interface art. According to the official disclosure, a malicious server could send a specially crafted PNG image that tricked the client into running code on a player's computer. That is what "remote code execution" means: an attacker getting your machine to execute their code without your permission. Crucially, this was not a bug that put every player at risk. It only affected people who connected to a server that was deliberately set up to abuse it. In other words, an attacker had to run a maliciously configured server and get you to join it. There was no evidence of this happening to anyone. As Hytale put it in the official notes: "after a thorough investigation we have found no evidence it was ever used against players." The disclosure landed in the "Hotfixes: Update 5" notes for client version 0.5.7, part of the ongoing pre-release cycle. If you follow the game's development closely, it slots right in alongside the latest Update 6 pre-release patch notes the team has been shipping through July. How Hytale fixed the RCE flaw This is the part that should reassure you most. The Hytale 0.5.7 hotfix was a textbook example of responsible disclosure done right: Private report first. The vulnerability was reported privately to Hytale rather than dumped publicly, giving the team time to fix it before bad actors could learn the details. Same-day fix. The patch shipped the same day the flaw was reported. That is about as fast a turnaround as a security team can manage. Extra hardening. Hytale did not stop at the single bug. The team performed additional hardening passes over its image, texture, and media loading systems so that the whole class of "malicious file" risks is tougher to exploit going forward. No evidence of abuse. A follow-up investigation found no sign the flaw was ever used against real players. Because the fix is already live in client 0.5.7, the single most important thing you can do is simply keep your client up to date. If you are unsure how the pre-release update flow works, our guide to testing updates and staying updated walks through it. The $20,000 Hytale bug bounty, explained Every good security story has a researcher, and this one is a handle you may start seeing more of: 0x90. They found the PNG flaw, reported it responsibly, and earned a $20,000 Hytale bug bounty for it. Afterward, 0x90 published a technical write-up titled "How a PNG became a $20,000 Hytale RCE" on their site, 0x90.sh. That payout is not a one-off gesture. Hytale runs an official bug bounty and security disclosure program (at hytale.com/security) that launched alongside Early Access, with top rewards up to $25,000 scaling by severity. Programs like this are a genuinely good sign for players: they give skilled researchers a legitimate, well-paid reason to hand vulnerabilities to Hytale quietly instead of selling or weaponizing them. The fact that a $20,000 payout went out for a client RCE tells you the program is real and being used as intended. Is Hytale safe to play and connect to servers? Yes. With the Hytale 0.5.7 hotfix installed, the specific PNG vulnerability is closed, and the broader hardening pass makes the surrounding systems more resistant too. There is no confirmed case of any player being harmed by this bug. If you want the fuller picture of what "safe" looks like as the game matures, a few practical habits go a long way: Stay patched. Run the current client. Security fixes only protect you once they are installed. Connect through servers you trust. The exploit required joining a maliciously configured server. Sticking to established, listed communities dramatically lowers your exposure to sketchy setups. Know your troubleshooting. If a legitimate server suddenly will not load after an update, that is usually a connection issue, not an attack. Our failed-to-connect fix guide covers the common causes. It is a fitting bit of theme for a game full of lurking void-touched threats: the real danger here was something hidden in plain sight, sitting quietly inside an ordinary image file until a researcher shined a light on it. The difference is that this particular menace got caught and patched before it could do any harm. What this means for server owners If you run a Hytale server, this disclosure is a reminder that your server sits in a position of trust: clients accept and render content you send them. That is exactly why Hytale hardened its media loading pipeline. Keep your own stack current, avoid untrusted third-party assets and plugins, and make sure the players who join you know you are a legitimate operation. Weighing whether to run your own box or use a host? Our self-hosted vs. managed server hosting guide lays out the tradeoffs. None of this changes the momentum behind the game. Hytale Early Access launched on January 13, 2026, and development is charging through the Update 6 pre-release cycle, with Chapter 1 targeted roughly two to three months out per a developer estimate (not a fixed date). If you are tracking the road to a stable build, keep an eye on our Update 6 release date tracker. The bottom line A serious Hytale RCE existed, a researcher found it and got paid $20,000, Hytale patched it the same day, and no players were harmed. That is not a horror story about Hytale being unsafe. It is what a healthy security process looks like in action, and it is a reason to feel more confident about connecting to servers, not less. Ready to jump back in? Browse trusted, listed communities and add your own server on HytaleCharts to find your next favorite place to play. Source: Hytale official blog — "Hotfixes: Update 5" (client 0.5.7), July 22, 2026.