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TI-2020-11173 Aliases CVE-2020-14302GHSA-74gp-x82w-5v28

Authentication bypass by capture-replay in keycloak

Priority LOW 24CWE-294Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-294.

Summary

A flaw was found in Keycloak before 13.0.0 where an external identity provider, after successful authentication, redirects to a Keycloak endpoint that accepts multiple invocations with the use of the same "state" parameter. This flaw allows a malicious user to perform replay attacks.

Why it matters now

EPSS 0.01005 63rd percentileScored 2026-11-07
Fix Fixed Red Hat: 4 advisories

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
—keycloakkeycloak 13.0.0—No fix listedCNA
  • keycloak Vendor— Affected keycloak 13.0.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*before 13.0.0VulnerableRed Hat
  • cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:* Versions before 13.0.0 Vulnerable ·Red Hat

Remediation

Red Hat 4 advisories

  • RHSA-2021:0969 Released 2021-03-23 · Red Hat rating Low
    Red Hat Single Sign-On 7.4.6 security update on RHEL 8
    • Red Hat Single Sign-On 7.4 for RHEL 8 rh-sso7-keycloak-9.0.12-1.redhat_00001.1.el8sso, rh-sso7-keycloak-server-9.0.12-1.redhat_00001.1.el8sso
  • RHSA-2021:0967 Released 2021-03-23 · Red Hat rating Low
    Red Hat Single Sign-On 7.4.6 security update on RHEL 6
    • Red Hat Single Sign-On 7.4 for RHEL 6 Server rh-sso7-keycloak-9.0.12-1.redhat_00001.1.el6sso, rh-sso7-keycloak-server-9.0.12-1.redhat_00001.1.el6sso
  • RHSA-2021:0968 Released 2021-03-23 · Red Hat rating Low
    Red Hat Single Sign-On 7.4.6 security update on RHEL 7
    • Red Hat Single Sign-On 7.4 for RHEL 7 Server rh-sso7-keycloak-9.0.12-1.redhat_00001.1.el7sso, rh-sso7-keycloak-server-9.0.12-1.redhat_00001.1.el7sso
Show 1 more Red Hat advisories
  • RHSA-2021:0974 Released 2021-03-23 · Red Hat rating Moderate
    Red Hat Single Sign-On 7.4.6 security update
    • Red Hat Single Sign-On 7.4.6

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Single Sign-On 7.4 for RHEL 6 ServerFixed RHSA-2021:0967
Red Hat Single Sign-On 7.4 for RHEL 7 ServerFixed RHSA-2021:0968
Red Hat Single Sign-On 7.4 for RHEL 8Fixed RHSA-2021:0969
Red Hat Single Sign-On 7.4.6Fixed RHSA-2021:0974
Not affected: 5 products
  • Red Hat Decision Manager 7
  • Red Hat Fuse 7
  • 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-2020-14302
  2. 2026-10-03 Alias added: GHSA-74gp-x82w-5v28

References

Advisory 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