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CVE-2026-1486

Org.keycloak.protocol.oidc.grants: disabled identity providers are still accepted for jwt authorization grant

Published: Feb 9, 2026Updated: Feb 10, 2026 Sources: CVE List NVD GHSACWE-358
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.4%
Top 64.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A flaw was found in Keycloak. A vulnerability exists in the jwt-authorization-grant flow where the server fails to verify if an Identity Provider (IdP) is enabled before issuing tokens. The issuer lookup mechanism (lookupIdentityProviderFromIssuer) retrieves the IdP configuration but does not filter for isEnabled=false. If an administrator disables an IdP (e.g., due to a compromise or offboarding), an entity possessing that IdP's signing key can still generate valid JWT assertions that Keycloak accepts, resulting in the issuance of valid access tokens.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-358

Affected Products

org.keycloak:keycloak-servicesMavenOSS Libraries
Red Hat build of Keycloak 26.4Red Hat
On-premWeb App
Web & CMS Plugins
Red Hat build of Keycloak 26.4.9Red Hat
On-prem
Operating Systems / linux-distro
mavenpackage-ecosystemOSS Libraries
red hatcommercialUSOperating Systemsaka red hat

Exploitability

Official Patch Available
Workaround Available

References

https://access.redhat.com/errata/RHSA-2026:2365
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:2366
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-1486
access.redhat.com
and 7 more references View all →

Timeline

Published
Feb 9, 2026
Last Updated
Feb 10, 2026

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