CVE-2026-1180

Org.keycloak.protocol.oidc: blind server-side request forgery (ssrf) in keycloak oidc dynamic client registration via jwks_uri

Published: Jan 20, 2026Updated: Jan 26, 2026 Sources: CVE List NVD GHSACWE-918

5.8MEDIUM

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:CScope

Changed

Impact

C:LConfidentiality

Low

I:NIntegrity

None

A:NAvailability

None

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Weaknesses

CWE-918

Affected Products

Red Hat

commercial·US

Red Hat build of Keycloak 26.4On-premWeb App

Web & CMS Plugins

Red Hat build of Keycloak 26.4.11On-premSecurity Product

Security Products / identity-access-mgmt

Red Hat Build of Keycloak

Web & CMS Plugins

Red Hat JBoss Enterprise Application Platform 8On-premWeb App

Enterprise Software / itsm-monitoring

Red Hat JBoss Enterprise Application Platform Expansion PackOn-premOS

Operating Systems / linux-distro

Red Hat Single Sign-On 7On-premSecurity Product

Security Products / identity-access-mgmt

Maven

package-ecosystem

org.keycloak:keycloak-adapter-core

OSS Libraries

Exploitability

Workaround Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Command and Control

Initial Access

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References

https://access.redhat.com/security/cve/CVE-2026-1180

access.redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2430781

bugzilla.redhat.com

https://nvd.nist.gov/vuln/detail/CVE-2026-1180

nvd.nist.gov

and 4 more references View all →

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