Vulnerabilities in pkg:maven/org.keycloak/keycloak-adapter-core
PACKAGECVE-2026-1180 is a MODERATE (CVSS 5.8) keycloak’s openid connect dynamic client vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Keycloak adapter core libraries in the Maven ecosystem. The issue involves keycloak’s openid connect dynamic client registration feature affected by server-side request forgery (ssrf). Remediation is available in the latest vendor maintenance releases.
pkg:maven/org.keycloak/keycloak-adapter-core
Vulnerability advisories affecting package pkg:maven/org.keycloak/keycloak-adapter-core. Select an advisory below to view technical details or fixes.
| Advisory ID | CVE / NVD | Severity | Summary |
|---|---|---|---|
| GHSA-7vw6-5q2f-7w5r | CVE-2026-1180 | MODERATE | Keycloak’s OpenID Connect Dynamic Client Registration feature affected by Server-Side Request Forgery (SSRF) |
CVE-2026-1180 at a Glance
Security Impact
CVSS: 5.8
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N).
How to Fix CVE-2026-1180
To remediate this vulnerability, upgrade all affected Keycloak adapter core 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-adapter-core</artifactId>
<version>Latest secure release</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-2026-1180, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:tree -Dincludes=org.keycloakAnalyze the terminal output to locate any version of Keycloak adapter core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), 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-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Keycloak adapter core, 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-2026-1180 Affected Keycloak adapter core Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
org.keycloak:keycloak-adapter-core
|
Maven |
≤ 25.0.3
|
|
References
Frequently Asked Questions
What is CVE-2026-1180?
Which Keycloak adapter core versions are affected?
What version fixes CVE-2026-1180?
Is keycloak-adapter-core affected?
What is the CVSS score of CVE-2026-1180?
What CWE is associated with CVE-2026-1180?
How can I check Maven dependencies for CVE-2026-1180?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-7vw6-5q2f-7w5r",
"modified" : "2026-04-02T15:31:34Z",
"published" : "2026-01-20T15:33:12Z",
"aliases" : [ "CVE-2026-1180" ],
"summary" : " Keycloak’s OpenID Connect Dynamic Client Registration feature affected by Server-Side Request Forgery (SSRF)",
"details" : "A flaw was identified in Keycloak’s OpenID Connect Dynamic Client Registration feature when clients authenticate using private_key_jwt. The issue allows a client to specify an arbitrary jwks_uri, which Keycloak then retrieves without validating the destination. This enables attackers to coerce the Keycloak server into making HTTP requests to internal or restricted network resources. As a result, attackers can probe internal services and cloud metadata endpoints, creating an information disclosure and reconnaissance risk.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Maven",
"name" : "org.keycloak:keycloak-adapter-core"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"last_affected" : "25.0.3"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-1180"
}, {
"type" : "WEB",
"url" : "https://github.com/keycloak/keycloak/issues/45645"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:6477"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:6478"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/security/cve/CVE-2026-1180"
}, {
"type" : "WEB",
"url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2430781"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/keycloak/keycloak"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-918" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2026-01-21T21:55:11Z",
"nvd_published_at" : "2026-01-20T13:16:03Z"
}
}