PT-2026-23494 · Keycloak · Keycloak

Published 2026-03-05 · Updated 2026-03-08 · CVE-2026-3047

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Keycloak (affected versions not specified)

Description A security issue exists in org.keycloak.broker.saml. Specifically, a disabled Security Assertion Markup Language (SAML) client configured as an Identity Provider (IdP)-initiated broker landing target 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, bypassing security restrictions.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-305

Related Identifiers

CVE-2026-3047

GHSA-8CR3-VPXX-92CX

Affected Products

Keycloak

References · 16

• https://bugzilla.redhat.com/show_bug.cgi?id=2441966 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:3948 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-3047 · Security Note
• https://access.redhat.com/errata/RHSA-2026:3926 · Vendor Advisory
• https://access.redhat.com/security/cve/CVE-2026-3047 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-8cr3-vpxx-92cx · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:3947 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:3925 · Vendor Advisory
• https://github.com/keycloak/keycloak · Note
• https://github.com/keycloak/keycloak/releases/tag/26.5.5 · Note
• https://twitter.com/CveFindCom/status/2029658768942739514 · Twitter Post
• https://twitter.com/CCBalert/status/2029972713234726958 · Twitter Post
• https://t.me/CVEtracker/46480 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2029751033035952632 · Twitter Post
• https://twitter.com/CVEnew/status/2029654710693601413 · Twitter Post