8.1

CVE-2026-2603

Exploit

Keycloak: keycloak: unauthorized authentication via disabled saml identity provider

A flaw was found in Keycloak. A remote attacker could bypass security controls by sending a valid SAML response from an external Identity Provider (IdP) to the Keycloak SAML endpoint for IdP-initiated broker logins. This allows the attacker to complete broker logins even when the SAML Identity Provider is disabled, leading to unauthorized authentication.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Redhat ≫ Build Of Keycloak Version >= 26.2 < 26.2.14
Redhat ≫ Build Of Keycloak Version >= 26.4 < 26.4.10
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.42% 0.356
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
RedHat 8.1 2.8 5.2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 8.1 2.8 5.2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE-306 Missing Authentication for Critical Function

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

https://bugzilla.redhat.com/show_bug.cgi?id=2440300
Vendor Advisory
Exploit
Issue Tracking
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2603.json
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:3947
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:3948
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:3925
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:3926
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-2603
Vendor Advisory