CVE-2025-1391: Keycloak services Improper Authorization Vulnerability
MODERATECVE-2025-1391 is a MODERATE (CVSS 5.4) improper authorization vulnerability (CWE-284: Improper Access Control) affecting Keycloak services libraries in the Maven ecosystem. The issue involves improper authorization in keycloak organization mapper allows unauthorized organization claims. Remediation is available by upgrading affected packages to version 26.1.3, 26.0.10.
CVE-2025-1391 at a Glance
Security Impact
CVSS: 5.4
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).
How to Fix CVE-2025-1391
To remediate this vulnerability, upgrade all affected Keycloak services dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
<dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-services</artifactId>
<version>26.1.3</version>
</dependency><dependency>
<groupId>org.keycloak</groupId>
<artifactId>keycloak-services</artifactId>
<version>26.0.10</version>
</dependency>Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:tree -Dincludes=org.keycloakHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2025-1391, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:tree -Dincludes=org.keycloakAnalyze the terminal output to locate any version of Keycloak services in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 26.1.3), your application is affected.
Note: The mvn dependency:tree -Dincludes=org.keycloak command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-284: Improper Access Control, where the product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. In Keycloak services, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2025-1391 Affected Keycloak services Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
org.keycloak:keycloak-services
|
Maven |
≥ 26.1.0
< 26.1.3
|
26.1.3
|
|
org.keycloak:keycloak-services
|
Maven |
< 26.0.10
|
26.0.10
|
References
Frequently Asked Questions
What is CVE-2025-1391?
Which Keycloak services versions are affected?
What version fixes CVE-2025-1391?
Is keycloak-services affected?
What is the CVSS score of CVE-2025-1391?
What CWE is associated with CVE-2025-1391?
How can I check Maven dependencies for CVE-2025-1391?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-gvgg-2r3r-53x7",
"modified" : "2025-03-10T21:09:43Z",
"published" : "2025-03-10T21:09:43Z",
"aliases" : [ "CVE-2025-1391" ],
"summary" : "Improper Authorization in Keycloak Organization Mapper Allows Unauthorized Organization Claims ",
"details" : "This vulnerability is caused by the improper mapping of users to organizations based solely on email/username patterns. The issue is limited to the token claim level, meaning the user is not truly added to the organization but may appear as such in applications relying on these claims. The risk increases in scenarios where self-registration is enabled and unrestricted, allowing an attacker to exploit the naming pattern. The issue is mitigated if admins restrict registration or use strict validation mechanisms.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Maven",
"name" : "org.keycloak:keycloak-services"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "26.1.0"
}, {
"fixed" : "26.1.3"
} ]
} ]
}, {
"package" : {
"ecosystem" : "Maven",
"name" : "org.keycloak:keycloak-services"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "26.0.10"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/keycloak/keycloak/security/advisories/GHSA-gvgg-2r3r-53x7"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-1391"
}, {
"type" : "WEB",
"url" : "https://github.com/keycloak/keycloak/commit/5aa2b4c75bb474303ab807017582bc01a9f7e378"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2025:2545"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/security/cve/CVE-2025-1391"
}, {
"type" : "WEB",
"url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2346082"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/keycloak/keycloak"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-284" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2025-03-10T21:09:43Z",
"nvd_published_at" : null
}
}