CVE-2025-69199 Pterodactyl websocket endpoints have no visible rate limits or monitoring, allowing for DOS attacks

High 8.3 Published Updated

Attackers can exhaust system resources via unthrottled websocket connections in Pterodactyl Wings, causing denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-69199?

CVE-2025-69199 is a high-severity denial of service vulnerability in pterodactyl panel, published on 19 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Wings is the server control plane for Pterodactyl, a free, open-source game server management panel. Prior to version 1.12.0, websockets within wings lack proper rate limiting and throttling. As a result a malicious user can open a large number of connections and then request data through these sockets, causing an excessive volume of data over the network and overloading the host system memory and cpu. Additionally, there is not a limit applied to the total size of messages being sent or received, allowing a malicious user to open thousands of websocket connections and then send massive volumes of information over the socket, overloading the host network, and causing increased CPU and memory load within Wings. Version 1.12.0 patches the issue.

Weakness: CWE-770, CWE-400

Which versions are affected by CVE-2025-69199?

3 open source packages ship an affected version, including github.com/pterodactyl/wings. It affects 1 product.

PackageAffectedFixed in
github.com/pterodactyl/wings GoAll versions1.12.0
github.com/pterodactyl/wings GoAll versions1.12.0
github.com/pterodactyl/wings GoAll versions1.12.0

Products include Pterodactyl Wings.

How do I fix CVE-2025-69199?

Upgrade github.com/pterodactyl/wings to 1.12.0 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2025-69199 being exploited?

There is no known exploitation of CVE-2025-69199 in the wild and no public exploit code.

Sources

Also known as GHSA-8w7m-w749-rx98, GO-2026-4331.

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