Is This vulnerability exploited in the wild?

No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

How severe is This vulnerability?

Medium severity, with a CVSS score of 5.5, published 26 June 2026.

Which products and versions are affected?

pterodactyl/panel (Packagist) < 1.12.3; Pterodactyl Panel < 1.12.3.

Is there a fix for This vulnerability?

A patch was published on 1.12.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is This vulnerability attacked?

It is attacked over the network, in a web application.

Check whether you run pterodactyl/panel (Packagist) or Pterodactyl Panel at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Pterodactyl Panel user enumeration in account email update endpoint

Q: Is there a fix for This vulnerability?

A patch was published on 1.12.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Q: How is This vulnerability attacked?

It is attacked over the network, in a web application.

Q: Am I affected?

Check whether you run pterodactyl/panel (Packagist) or Pterodactyl Panel at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Severity: medium · CVSS 5.5 · Published 2026-06-26

Pterodactyl Panel, a management platform for game servers, contains a flaw in its account settings page. An attacker with a valid account can systematically test email addresses to see if they are registered on the system. This could allow malicious actors to build a database of users for targeted phishing attacks or credential stuffing, compromising user privacy.

Technologies: pterodactyl/panel (Packagist), Pterodactyl Panel. Vendors: Packagist, Pterodactyl.

Quick answers

Is This vulnerability exploited in the wild?: No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.
How severe is This vulnerability?: Medium severity, with a CVSS score of 5.5, published 26 June 2026.
Which products and versions are affected?: pterodactyl/panel (Packagist) < 1.12.3; Pterodactyl Panel < 1.12.3.
Is there a fix for This vulnerability?: A patch was published on 1.12.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is This vulnerability attacked?: It is attacked over the network, in a web application.
Am I affected?: Check whether you run pterodactyl/panel (Packagist) or Pterodactyl Panel at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A user enumeration vulnerability (CWE-204) exists in the Pterodactyl Panel account email update endpoint. While the login and password reset forms implement reCAPTCHA and rate limiting, the email update POST request lacks these protections. An authenticated attacker can submit automated requests to change their email to arbitrary addresses; the server's response differs based on whether the target email is already registered. This allows for large-scale enumeration of the user base. The issue is resolved in version 1.12.3.

Affected products

Pterodactyl Panel < 1.12.3

Timeline

2026-05-23: disclosed
2026-06-26: advisory
1.12.3: patched

References

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