CVE-2017-2582: Vulnerability in org.keycloak:keycloak-core

org.keycloak:keycloak-core Updated 02 Oct 2025

Summary

18/10/2018

Disclosed on

CVE-2017-2582

CVE

Yes i

Fix available

Moderate

Severity

6.5

CVSS Score

CVE-2017-2582: keycloak-core discloses system properties. Affects org.keycloak:keycloak-core versions < 2.5.1. Fixed in 2.5.1. How to fix ↓

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Background

org.keycloak:keycloak-core is a Maven package that provides core functionality for Keycloak, an open-source identity and access management solution. It is responsible for parsing SAML messages and handling attribute values. This vulnerability affects versions prior to 2.5.1.

Vulnerability Detail

The StaxParserUtil class in keycloak-core replaces special strings for obtaining attribute values with system properties while parsing SAML messages. An attacker can exploit this by formatting the SAML request ID field to be a chosen system property, which can then be obtained in the "InResponseTo" field of the response. This allows the attacker to determine the values of system properties on the attacked system, potentially leading to unauthorized access or information disclosure.

How To Fix

Latest published version: 26.8.1 as of 22 Oct 2026

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

2.5.1

This is the first release that contains the fix.

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Workaround

There is no known workaround for this vulnerability. It is necessary to upgrade to the fixed version of the package.

Conclusion

In conclusion, the vulnerability CVE-2017-2582 affects org.keycloak:keycloak-core versions prior to 2.5.1. It allows an attacker to determine system property values, potentially leading to unauthorized access or information disclosure. To mitigate this vulnerability, it is crucial to upgrade to version 2.5.1 or later. For further support on vulnerability remediation, please contact DevNack.com.

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