CVE-2023-6134

Keycloak: reflected xss via wildcard in oidc redirect_uri

Published: Dec 14, 2023Updated: Sep 22, 2026 Sources: CVE List NVD GHSACWE-79

4.6MEDIUM

Description

A flaw was found in Keycloak that prevents certain schemes in redirects, but permits them if a wildcard is appended to the token. This issue could allow an attacker to submit a specially crafted request leading to cross-site scripting (XSS) or further attacks. This flaw is the result of an incomplete fix for CVE-2020-10748.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:RUser Interaction

Required

Scope

S:UScope

Unchanged

Impact

C:LConfidentiality

Low

I:LIntegrity

Low

A:NAvailability

None

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Weaknesses

CWE-79

Affected Products

Red Hat

commercial·USaka redhat

single sign-onOn-prem

Operating Systems / linux-distro

keycloakOn-prem

Operating Systems / linux-distro

openshift container platformOn-prem

Operating Systems / linux-distro

openshift container platform for powerOn-prem

Operating Systems / linux-distro

openshift container platform ibm z systemsOn-prem

Operating Systems / linux-distro

Red Hat build of Keycloak 22On-premWeb App

Security Products / identity-access-mgmt

Red Hat build of Keycloak 22.0.7LibraryLibrary

OSS Libraries

Red Hat Single Sign-On 7On-premSecurity Product

Security Products / identity-access-mgmt

Maven

package-ecosystem

org.keycloak:keycloak-services

OSS Libraries

and 5 more affected products View all →

Exploitability

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Execution

Initial Access

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References

https://access.redhat.com/errata/RHSA-2023:7854

access.redhat.com

https://access.redhat.com/errata/RHSA-2023:7855

access.redhat.com

https://access.redhat.com/errata/RHSA-2023:7856

access.redhat.com

and 15 more references View all →

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