CVE-2020-1717: Account Email Enumeration Attack in Keycloak

org.keycloak:keycloak-parent Updated 02 Oct 2025

Summary

09/02/2022
No i
Low
2.7

CVE-2020-1717: Generation of Error Message Containing Sensitive Information in Keycloak. Affects org.keycloak:keycloak-parent versions < 7.0.1. No fix is published. How to fix ↓

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Background

Keycloak is an open-source identity and access management solution that provides authentication and authorization services for applications. It is commonly used to secure web applications, APIs, and microservices. Keycloak allows users to log in and manage their accounts, including email addresses.

Vulnerability Detail

A vulnerability was discovered in Keycloak 7.0.1 that allows a logged-in user to perform an account email enumeration attack. This means that an attacker can determine if a specific email address is associated with an existing account on the Keycloak instance. By exploiting this vulnerability, an attacker can gather sensitive information about the users of the system, potentially leading to further attacks such as phishing or account takeover.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

There is no known workaround for this vulnerability. It is necessary to apply the fix by upgrading to a non-affected version of Keycloak.

Conclusion

In conclusion, the vulnerability CVE-2020-1717 in Keycloak 7.0.1 allows a logged-in user to perform an account email enumeration attack, potentially exposing sensitive information. To mitigate this vulnerability, it is crucial to upgrade to a version of Keycloak that is not affected by this issue. Keeping all software dependencies up to date is essential for maintaining the security of the system. For further support on vulnerability remediation, please contact DevNack.com.

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FAQ

Keycloak is an open-source identity and access management solution that provides authentication and authorization services for applications.

An account email enumeration attack is a type of attack where an attacker can determine if a specific email address is associated with an existing account on a system. In the case of Keycloak, this vulnerability allows an attacker to gather sensitive information about the users of the system.

This vulnerability can lead to the exposure of sensitive information, such as email addresses, which can be used for further attacks like phishing or account takeover.

To fix this vulnerability, it is recommended to upgrade to a version of Keycloak that is not affected by this issue. The vulnerability was fixed in versions after 7.0.1.

No, there is no known workaround for this vulnerability. It is necessary to apply the fix by upgrading to a non-affected version of Keycloak.

Related vulnerabilities

Recent vulnerabilities recorded for org.keycloak:keycloak-parent.

How To Fix

No fixed version is published for this vulnerability.

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

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