CVE-2026-2603

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...

CVE-2026-2603

CVE-2026-2603 affects Keycloak: an attacker can bypass security by sending a valid SAML response from an external IdP to the Keycloak SAML endpoint for IdP-initiated broker logins, enabling unauthorized authentication. The issue is described across multiple sources (NVD/EUVD/GHSA) with a CVSS v3....

CVE-2026-2092 Keycloak-services: keycloak: unauthorized access via improper validation of encrypted saml assertions

A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language SAML broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response. Thi...

CVE-2026-2092

Keycloak SAML broker endpoint vulnerability: encrypted SAML assertions are not properly validated when the overall SAML response is unsigned. An attacker with a valid signed SAML assertion can craft a malicious SAML response to inject an encrypted assertion for an arbitrary principal, leading to ...

CVE-2026-2575: Improper Handling of Highly Compressed Data (Data Amplification)

A flaw was found in Keycloak. An unauthenticated remote attacker can trigger an application level Denial of Service DoS by sending a highly compressed SAMLRequest through the SAML Redirect Binding. The server fails to enforce size limits during DEFLATE decompression, leading to an OutOfMemoryErro...

PT-2026-26027

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw exists in Keycloak where an unauthenticated remote attacker can trigger an application-level Denial of Service DoS by sending a highly compressed SAMLRequest through the SAML Redirect...

CVE-2026-2603: Missing Authentication for Critical Function

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...

CVE-2026-2092: Improper Validation of Specified Type of Input

A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language SAML broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response. Thi...

SUSE CVE-2017-18918

An issue was discovered in Mattermost Server before 3.7.3 and 3.6.5. A System Administrator can place a SAML certificate at an arbitrary pathname...

GO-2026-4607 ZITADEL has 1-Click Account Takeover via XSS in /saml-post Endpoint in github.com/zitadel/zitadel

ZITADEL has 1-Click Account Takeover via XSS in /saml-post Endpoint in github.com/zitadel/zitadel. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing false-positive reports from...

CVE-2026-25604

In AWS Auth manager, the origin of the SAML authentication has been used as provided by the client and not verified against the actual instance URL. This allowed to gain access to different instances with potentially different access controls by reusing SAML response from other instances. You...

GHSA-RV5F-CCPM-XJJ4 Apache Airflow AWS Auth Manager has Host Header Injection Leading to SAML Authentication Bypass

In AWS Auth manager, the origin of the SAML authentication has been used as provided by the client and not verified against the actual instance URL. This allowed to gain access to different instances with potentially different access controls by reusing SAML response from other instances. You...

EUVD-2026-10319

In AWS Auth manager, the origin of the SAML authentication has been used as provided by the client and not verified against the actual instance URL. This allowed to gain access to different instances with potentially different access controls by reusing SAML response from other instances. You...

CVE-2026-25604

In AWS Auth manager, the origin of the SAML authentication has been used as provided by the client and not verified against the actual instance URL. This allowed to gain access to different instances with potentially different access controls by reusing SAML response from other instances. You...

CVE-2026-25604

The apache-airflow-providers-amazon package (versions 8.0.0 – 9.21.x) is vulnerable to a Host Header Injection in the AWS Auth Manager . The _prepare_flask_request() method fails to validate the client-provided Host header, using it instead to construct the SAML Assertion Consumer Service (ACS) c...

CVE-2026-25604 Apache Airflow AWS Auth Manager - Host Header Injection Leading to SAML Authentication Bypass

In AWS Auth manager, the origin of the SAML authentication has been used as provided by the client and not verified against the actual instance URL. This allowed to gain access to different instances with potentially different access controls by reusing SAML response from other instances. You...

CVE-2026-29191

ZITADEL is an open source identity management platform. From version 4.0.0 to 4.11.1, a vulnerability in Zitadel's login V2 interface was discovered that allowed a possible account takeover via XSS in /saml-post Endpoint. This issue has been patched in version 4.12.0...

CVE-2026-25604: Origin Validation Error

In AWS Auth manager, the origin of the SAML authentication has been used as provided by the client and not verified against the actual instance URL. This allowed to gain access to different instances with potentially different access controls by reusing SAML response from other instances. You...

PT-2026-24054

Name of the Vulnerable Software and Affected Versions Apache Airflow versions prior to 9.22.0 Description The AWS Auth Manager in Apache Airflow did not verify the origin of SAML authentication against the actual instance URL, relying instead on information provided by the client. This allowed fo...

CVE-2026-29191

ZITADEL is an open source identity management platform. From version 4.0.0 to 4.11.1, a vulnerability in Zitadel's login V2 interface was discovered that allowed a possible account takeover via XSS in /saml-post Endpoint. This issue has been patched in version 4.12.0...