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VulnerabilityPublished

Pterodactyl Panel: Client email change endpoint allows enumeration of accounts in system

Affects pterodactyl/panelSource GCVE Database

0

Public exploit available · CVSS 6.9 Medium : upgrade to 1.12.3 as a priority.

Data as of 26 Jun 2026, 22:07 UTC

CVSS 4.0 base score
6.9Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 1.12.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

What to do

Upgrade pterodactyl/panel to 1.12.3.

Affected software

ProductAffectedFixed in
Packagistpterodactyl/panelAffected
  • <1.12.3
Fixed in
  • 1.12.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, restrict access to the email update endpoint to trusted users only and monitor for unusual activity. Implementing external rate limiting or CAPTCHA protections at the web server or application firewall level may help mitigate automated enumeration attempts.

Description

An unprotected user enumeration vulnerability exists in the Pterodactyl panel's account email update endpoint. Authenticated users can test arbitrary email addresses to determine if they are registered, as the endpoint lacks rate limiting and CAPTCHA protections. This allows attackers to enumerate all registered emails, potentially targeting administrators and high-value accounts. The vulnerability affects all Pterodactyl panel installations prior to version 1.12.3.

References

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