CVE-2021-3632

HIGH
7.5
CVSS Score
Published: August 26, 2022 at 03:25 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
3 products affected across 2 vendorsSingle Sign onKeycloakEnterprise Linux

Using keycloak by N/A?

Get instant alerts when new vulnerabilities affect keycloak - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already registered for any user by using the WebAuthn password-less login flow.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 15.1.0
Vendor states this is fixed in 15.1.0 (unaffected)
7.4 ≤ v < 7.4.97.0
Affected range stops below 7.4.9, so it looks safe — our inference, not a vendor statement
redhat-enterprise-linux (environment)
All versions

References (5)

x_refsource_MISCIssue TrackingVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1978196
x_refsource_MISCIssue TrackingPatchThird Party Advisory
https://github.com/keycloak/keycloak/pull/8203
x_refsource_MISCPermissions RequiredVendor Advisory
https://issues.redhat.com/browse/KEYCLOAK-18500

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-287

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card