CVE-2026-3047HIGH 8.8EPSS p36.3%

CVE-2026-3047CVE-2026-3047

Description

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.46% probability of exploitation · percentile 36.3% · 2026-06-19T12:03:05Z
Published2026-03-05
Last modified2026-03-26

Underlying weaknesses· 1

CWE-305

References

  1. https://access.redhat.com/errata/RHSA-2026:3925
  2. https://access.redhat.com/errata/RHSA-2026:3926
  3. https://access.redhat.com/errata/RHSA-2026:3947
  4. https://access.redhat.com/errata/RHSA-2026:3948
  5. https://access.redhat.com/security/cve/CVE-2026-3047
  6. https://bugzilla.redhat.com/show_bug.cgi?id=2441966

1

TypeTargetConfidenceTier
WeaknessAuthentication Bypass by Primary Weaknesscwe-3050%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.