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TI-2023-03357 Aliases CVE-2023-3597GHSA-4f53-xh3v-g8x4

Keycloak: secondary factor bypass in step-up authentication

Priority LOW 24CWE-287Published · Updated

Key facts

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

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

Summary

A flaw was found in Keycloak, where it does not correctly validate its client step-up authentication in org.keycloak.authentication. This flaw allows a remote user authenticated with a password to register a false second authentication factor along with an existing one and bypass authentication.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00603 49th percentileScored 2026-11-07
Fix Fixed keycloak: 22.0.10, 24.0.3org.keycloak:keycloak-services (Maven): 22.0.10, 24.0.3Red Hat: 3 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—keycloakbefore 22.0.10; 23.0.0 to before 24.0.322.0.10, 24.0.3Patch availableCNA
Red HatRed Hat build of Keycloak 22—22.0.10-1Patch availableCNA
Red HatRed Hat build of Keycloak 22—22-13Patch availableCNA
Red HatRed Hat build of Keycloak 22—22-16Patch availableCNA
Red HatRed Hat build of Keycloak 22.0.10——Not affectedCNA
Red HatRHSSO 7.6.8——Not affectedCNA
—org.keycloak:keycloak-services (Maven)before 22.0.1022.0.10Patch availableGHSA-4f53-xh3v-g8x4
—org.keycloak:keycloak-services (Maven)23.0.0 to before 24.0.324.0.3Patch availableGHSA-4f53-xh3v-g8x4
  • keycloak Vendor— Affected before 22.0.10; 23.0.0 to before 24.0.3 Fixed in 22.0.10, 24.0.3 Patch available CNA
  • Red Hat build of Keycloak 22 VendorRed Hat Affected — Fixed in 22.0.10-1 Patch available CNA
  • Red Hat build of Keycloak 22 VendorRed Hat Affected — Fixed in 22-13 Patch available CNA
  • Red Hat build of Keycloak 22 VendorRed Hat Affected — Fixed in 22-16 Patch available CNA
  • Red Hat build of Keycloak 22.0.10 VendorRed Hat Affected — Fixed in — Not affected CNA
  • RHSSO 7.6.8 VendorRed Hat Affected — Fixed in — Not affected CNA
  • org.keycloak:keycloak-services (Maven) Vendor— Affected before 22.0.10 Fixed in 22.0.10 Patch available GHSA-4f53-xh3v-g8x4
  • org.keycloak:keycloak-services (Maven) Vendor— Affected 23.0.0 to before 24.0.3 Fixed in 24.0.3 Patch available GHSA-4f53-xh3v-g8x4

CPE names CNA · 3

CPEVersionsRoleVendor
cpe:/a:redhat:build_keycloak:22::el922—Red Hat
cpe:/a:redhat:build_keycloak:2222—Red Hat
cpe:/a:redhat:red_hat_single_sign_on:7.67.6—Red Hat
  • cpe:/a:redhat:build_keycloak:22::el9 Versions 22 — ·Red Hat
  • cpe:/a:redhat:build_keycloak:22 Versions 22 — ·Red Hat
  • cpe:/a:redhat:red_hat_single_sign_on:7.6 Versions 7.6 — ·Red Hat

Remediation

  • Fix · CNA keycloak Fixed in 22.0.10, 24.0.3
  • Fix · GHSA-4f53-xh3v-g8x4 org.keycloak:keycloak-services (Maven) Fixed in 22.0.10 Advisory →
  • Fix · GHSA-4f53-xh3v-g8x4 org.keycloak:keycloak-services (Maven) Fixed in 24.0.3 Advisory →

Red Hat 3 advisories

  • RHSA-2024:1867 Released 2024-04-16 · Red Hat rating Moderate
    Red Hat build of Keycloak 22.0.10 enhancement and security update
    • Red Hat build of Keycloak 22 rhbk/keycloak-operator-bundle, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9-operator
  • RHSA-2024:1868 Released 2024-04-16 · Red Hat rating Important
    Red Hat build of Keycloak security update
    • Red Hat build of Keycloak 22.0.10
  • RHSA-2024:1866 Released 2024-04-16 · Red Hat rating Important
    Red Hat Single Sign-On 7.6.8 security update
    • RHSSO 7.6.8

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
RHSSO 7.6.8Fixed RHSA-2024:1866
Red Hat build of Keycloak 22Fixed RHSA-2024:1867
Red Hat build of Keycloak 22.0.10Fixed RHSA-2024:1868

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-3597
  2. 2026-10-03 Alias added: GHSA-4f53-xh3v-g8x4

References

Advisory 4

Other 5

  • TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-05363 Code injection in Elastic Kibana KEVCVSS 3.1CRITICAL 10.0
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
See all 7412 →

Sources

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