CVE-2023-3597

mediumpriority · track · 0OT risk · elevatedEPSS 0.006 · 49 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.60% (49th) EPSS

CVSS 5 · medium

Is it mine?

11 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · osv

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

5.0

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · ENISA EU

v3.15mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · secalert@redhat.com USexploitability 1.6 · impact 3.4

v3.15mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · OSV

v3.14.6mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USCWE-287USCWE-288US

affected products (11)

Products and version ranges known to be affected.

Hitachi Ops Centerall versionscert_bundDEcpe:/a:hitachi:ops_center:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat Enterprise Linux Keycloak <22.0.10all versionscert_bundDE
Red Hat JBoss A-MQ Broker <7.12.0all versionscert_bundDE
Red Hat Enterprise Linux≤ Keycloak <22.0.10cert_bundDE
Red Hat JBoss A-MQ≤ Broker <7.12.0cert_bundDE
Red Hat Red Hat build of Keycloak 22< 22-13enisa_euvdEU
Red Hat Red Hat build of Keycloak 22< 22-16enisa_euvdEU
Red Hat Red Hat build of Keycloak 22< 22.0.10-1enisa_euvdEU
Maven org.keycloak:keycloak-services< 22.0.10osvUSpkg:maven/org.keycloak/keycloak-services
Maven org.keycloak:keycloak-services23.0.0 → 24.0.3osvUSpkg:maven/org.keycloak/keycloak-services

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-0914Red Hat Enterprise Linux (keycloak): Mehrere SchwachstellenDeutsch2024-04-16csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen offenzulegen, Cross-Site Scripting (XSS)-Angriffe durchzuführen oder einen Denial-of-Service-Zustand zu verursachen.
GHSA-4f53-xh3v-g8x4Keycloak secondary factor bypass in step-up authentication2024-04-17ghsa · osvUS
Keycloak does not correctly validate its client step-up authentication. A password-authed attacker could use this flaw to register a false second auth factor, alongside the existing one, to a targeted account. The second factor then permits step-up authentication.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund osv NVD CVE.org MITRE

published 2024-04-25modified 2026-06-17

references (17)

External citations — patches, advisories, analysis.

scry

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