CVE-2026-8922: Keycloak Revoked Tokens Can Remain Active Vulnerability
MODERATECVE-2026-8922 is a MODERATE (CVSS 5.4) revoked tokens can remain active vulnerability (CWE-303: Incorrect Implementation of Authentication Algorithm) affecting Keycloak libraries in the Maven ecosystem. The issue involves revoked tokens can remain active when both realm-level and client-level `notbefore` revocation policies are configured. Remediation is available in the latest vendor maintenance releases.
CVE-2026-8922 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-2026-8922
To remediate this vulnerability, upgrade all affected Keycloak 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>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-2026-8922, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:tree -Dincludes=org.keycloakAnalyze the terminal output to locate any version of Keycloak 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-303: Incorrect Implementation of Authentication Algorithm, where the requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect. In Keycloak, 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-2026-8922 Affected Keycloak Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
org.keycloak:keycloak-services
|
Maven |
≤ 26.6.2
|
|
References
Frequently Asked Questions
What is CVE-2026-8922?
Which Keycloak versions are affected?
What version fixes CVE-2026-8922?
Is keycloak-services affected?
What is the CVSS score of CVE-2026-8922?
What CWE is associated with CVE-2026-8922?
How can I check Maven dependencies for CVE-2026-8922?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-83c4-ffjp-mxp9",
"modified" : "2026-06-26T09:30:45Z",
"published" : "2026-05-19T09:31:21Z",
"aliases" : [ "CVE-2026-8922" ],
"summary" : "Keycloak: Revoked Tokens Can Remain Active When Both Realm-Level and Client-Level `notBefore` Revocation Policies are Configured",
"details" : "A flaw was found in Keycloak. When both realm-level and client-level `notBefore` revocation policies are configured, Keycloak's OpenID Connect (OIDC) Introspection feature fails to properly honor the realm-level policy. This allows tokens that should have been revoked to remain active, potentially leading to unauthorized access or continued session validity. This could impact the security of systems utilizing Keycloak for identity and access management.",
"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" : "0"
}, {
"last_affected" : "26.6.2"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-8922"
}, {
"type" : "WEB",
"url" : "https://github.com/keycloak/keycloak/issues/49118"
}, {
"type" : "WEB",
"url" : "https://github.com/keycloak/keycloak/pull/49129"
}, {
"type" : "WEB",
"url" : "https://github.com/keycloak/keycloak/commit/b6cd645683f469724cd588fac415fe09bd20a27a"
}, {
"type" : "WEB",
"url" : "https://github.com/keycloak/keycloak/commit/c5bda802e98b412e42fa62ff6240669e9ea4a858"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:25097"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:25098"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:30049"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/errata/RHSA-2026:30050"
}, {
"type" : "WEB",
"url" : "https://access.redhat.com/security/cve/CVE-2026-8922"
}, {
"type" : "WEB",
"url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2479586"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/keycloak/keycloak"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-303" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2026-06-04T17:30:58Z",
"nvd_published_at" : "2026-05-19T08:16:18Z"
}
}