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TI-2021-02577 Aliases CVE-2021-3632GHSA-qpq9-jpv4-6gwr

Improper authentication in keycloak

Priority LOW 35CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-287.

Summary

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.

Why it matters now

EPSS 0.01157 67th percentileScored 2026-11-07
Fix Fixed org.keycloak:keycloak-core (Maven): 15.1.0Red Hat: 4 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—keycloakFixed in v15.1.0—No fix listedCNA
—org.keycloak:keycloak-core (Maven)before 15.1.015.1.0Patch availableGHSA-qpq9-jpv4-6gwr
  • keycloak Vendor— Affected Fixed in v15.1.0 Fixed in — No fix listed CNA
  • org.keycloak:keycloak-core (Maven) Vendor— Affected before 15.1.0 Fixed in 15.1.0 Patch available GHSA-qpq9-jpv4-6gwr

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*before 15.1.0VulnerableRed Hat
cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:*7.4 to before 7.4.9VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*6.0Running onRed Hat
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0Running onRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0Running onRed Hat
  • cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:* Versions before 15.1.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:* Versions 7.4 to before 7.4.9 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Running on ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Running on ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Running on ·Red Hat

Remediation

  • Fix · GHSA-qpq9-jpv4-6gwr org.keycloak:keycloak-core (Maven) Fixed in 15.1.0 Advisory →

Red Hat 4 advisories

  • RHSA-2021:3534 Released 2021-09-14 · Red Hat rating Moderate
    Red Hat Single Sign-On 7.4.9 security update
    • Red Hat Single Sign-On 7.4.9
  • RHSA-2021:3527 Released 2021-09-14 · Red Hat rating Moderate
    Red Hat Single Sign-On 7.4.9 security update on RHEL 6
    • Red Hat Single Sign-On 7.4 for RHEL 6 Server rh-sso7-keycloak-9.0.15-1.redhat_00002.1.el6sso, rh-sso7-keycloak-server-9.0.15-1.redhat_00002.1.el6sso
  • RHSA-2021:3529 Released 2021-09-14 · Red Hat rating Moderate
    Red Hat Single Sign-On 7.4.9 security update on RHEL 8
    • Red Hat Single Sign-On 7.4 for RHEL 8 rh-sso7-keycloak-9.0.15-1.redhat_00002.1.el8sso, rh-sso7-keycloak-server-9.0.15-1.redhat_00002.1.el8sso
Show 1 more Red Hat advisories
  • RHSA-2021:3528 Released 2021-09-14 · Red Hat rating Moderate
    Red Hat Single Sign-On 7.4.9 security update on RHEL 7
    • Red Hat Single Sign-On 7.4 for RHEL 7 Server rh-sso7-keycloak-9.0.15-1.redhat_00002.1.el7sso, rh-sso7-keycloak-server-9.0.15-1.redhat_00002.1.el7sso

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Single Sign-On 7.4 for RHEL 6 ServerFixed RHSA-2021:3527
Red Hat Single Sign-On 7.4 for RHEL 7 ServerFixed RHSA-2021:3528
Red Hat Single Sign-On 7.4 for RHEL 8Fixed RHSA-2021:3529
Red Hat Single Sign-On 7.4.9Fixed RHSA-2021:3534
Not affected: 6 products
  • Red Hat Decision Manager 7
  • Red Hat Fuse 7
  • Red Hat Integration Camel K 1
  • Red Hat OpenShift Application Runtimes
  • Red Hat Process Automation 7
  • Red Hat support for Spring Boot

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-3632
  2. 2026-10-03 Alias added: GHSA-qpq9-jpv4-6gwr

References

Patch 2

Advisory 4

Other 1

  • TI-2024-01049 Keycloak: path transversal in redirection validation CVSS 3.1HIGH 8.1
  • TI-2023-26623 The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6… CVSS 3.1MEDIUM 5.9
  • TI-2020-08665 Server-side request forgery in keycloak CVSS 3.1MEDIUM 5.3
  • TI-2022-03468 Path traversal in Red Hat Keycloak CVSS 3.1CRITICAL 9.1
  • TI-2021-03612 A POST based reflected Cross Site Scripting vulnerability on has been identified in Keycloak. CVSS 3.1MEDIUM 6.1
  • TI-2022-03994 Cross-site scripting in keycloak CVSS 3.1CRITICAL 10.0
See all 97 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences