CVE-2021-41273: Cross-Site Request Forgery allowing sending of test emails and generation of node auto-deployment keys

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-11-17 · updated 2026-06-17
Weakness: CWE-352

Description

Pterodactyl is an open-source game server management panel built with PHP 7, React, and Go. Due to improperly configured CSRF protections on two routes, a malicious user could execute a CSRF-based attack against the following endpoints: Sending a test email and Generating a node auto-deployment token. At no point would any data be exposed to the malicious user, this would simply trigger email spam to an administrative user, or generate a single auto-deployment token unexpectedly. This token is not revealed to the malicious user, it is simply created unexpectedly in the system. This has been addressed in release `1.6.6`. Users may optionally manually apply the fixes released in v1.6.6 to patch their own systems.

Affected products

pterodactyl panel: before 1.6.6 — fixed in 1.6.6

How to fix

Upgrade to a fixed version: pterodactyl panel 1.6.6. Check the vendor advisory for mitigations.

References

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