CVE-2026-3047

highpriority · track · 0EPSS 0.005 · 42 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.50% (42nd) EPSS

CVSS 8.8 · high

Is it mine?

17 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

A flaw was found in org.keycloak.broker.saml. When a disabled Security Assertion Markup Language (SAML) client is configured as an Identity Provider (IdP)-initiated broker landing target, it can still complete the login process and establish a Single Sign-On (SSO) session. This allows a remote attacker to gain unauthorized access to other enabled clients without re-authentication, effectively bypassing security restrictions.

cvss

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

8.8

010

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

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secalert@redhat.com USexploitability 2.8 · impact 5.9

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 2.8 · impact 5.9

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

ssvc

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

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-305USCWE-305US

affected products (17)

Products and version ranges known to be affected.

Open Source Keycloak <26.5.5all versionscert_bundDE
Open Source Keycloak< 26.5.5cert_bundDE
Red Hat Red Hat build of Keycloak 26.2< 26.2-16enisa_euvdEU
Red Hat Red Hat build of Keycloak 26.2< 26.2.14-1enisa_euvdEU
Red Hat Red Hat build of Keycloak 26.4< 26.4-12enisa_euvdEU
Red Hat Red Hat build of Keycloak 26.4< 26.4.10-1enisa_euvdEU
redhat build of keycloakall versionsnvdUScpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*
redhat build of keycloak= 26.2nvdUScpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*
redhat build of keycloak= 26.2.14nvdUScpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*
redhat build of keycloak= 26.4nvdUScpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*
redhat build of keycloak= 26.4.10nvdUScpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*
redhat keycloakall versionsnvdUScpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*
Bitnami keycloak26.2.0 → 26.2.1osvUSpkg:bitnami/keycloak
Bitnami keycloak26.2.14 → 26.3.0osvUSpkg:bitnami/keycloak
Bitnami keycloak26.4.0 → 26.4.1osvUSpkg:bitnami/keycloak
Bitnami keycloak26.4.10 → 26.5.0osvUSpkg:bitnami/keycloak
Maven org.keycloak:keycloak-broker-saml≤ 1.8.1.FinalosvUSpkg:maven/org.keycloak/keycloak-broker-saml

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-0622Keycloak: Mehrere Schwachstellen ermöglichen Umgehen von SicherheitsvorkehrungenDeutsch2026-03-05csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Keycloak ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
GHSA-8cr3-vpxx-92cxKeycloak SAML Broken has Authentication Bypass by Primary Weakness2026-03-05ghsa · osvUS
A flaw was found in org.keycloak.broker.saml. When a disabled Security Assertion Markup Language (SAML) client is configured as an Identity Provider (IdP)-initiated broker landing target, it can still complete the login process and establish a Single Sign-On (SSO) session. This allows a remote attacker to gain unauthorized access to other enabled clients without re-authentication, effectively bypassing security restrictions. A fix is available at https://github.com/keycloak/keycloak/releases/tag/26.5.5.
BIT-keycloak-2026-3047Org.keycloak.broker.saml: keycloak saml broker: authentication bypass due to disabled saml client completing idp-initiated login2026-08-25vendor · osvUS
A flaw was found in org.keycloak.broker.saml. When a disabled Security Assertion Markup Language (SAML) client is configured as an Identity Provider (IdP)-initiated broker landing target, it can still complete the login process and establish a Single Sign-On (SSO) session. This allows a remote attacker to gain unauthorized access to other enabled clients without re-authentication, effectively bypassing security restrictions.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund nvd NVD CVE.org MITRE

published 2026-03-05modified 2026-07-15

references (21)

External citations — patches, advisories, analysis.

scry

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