Important: Red Hat Security Advisory: Red Hat build of Keycloak 26.4.13 Images Security Update

New images are available for Red Hat build of Keycloak 26.4.13 and Red Hat build of Keycloak 26.4.13 Operator, running on OpenShift Container Platform Red Hat build of Keycloak is an integrated sign-on solution, available as a Red Hat JBoss Middleware for OpenShift containerized image. The Red Ha...

Important: Red Hat Security Advisory: Red Hat build of Keycloak 26.4.13 Security Update

New Red Hat build of Keycloak 26.4.13 packages are available from the Customer Portal Red Hat build of Keycloak 26.4.13 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. Security...

GHSA-6C99-87FR-6Q7R OpenAM: Pre-auth RCE via Java Deserialization in WebAuthn Authenticator Storage

Summary Description A deserialization of untrusted data vulnerability CWE-502 exists in OpenAM's WebAuthn authentication module. Under certain conditions, this may allow an attacker to achieve arbitrary code execution in the context of the application server. This affects OpenAM Community Edition...

PT-2026-52178

Name of the Vulnerable Software and Affected Versions OpenAM Community Edition versions prior to 16.1.1 Description A deserialization of untrusted data issue exists in the WebAuthn authentication module. This occurs when the application fails to properly validate data before deserializing it, whi...

Authentication Bypass

Yubico java-webauthn-server is vulnerable to Authentication Bypass. The vulnerability is due to incorrect validation of a function's return value during the second-factor authentication flow, allowing attackers to bypass the intended authentication checks and impersonate legitimate users...

keycloak: org.keycloak/keycloak-services: Keycloak: Policy bypass during WebAuthn credential registration via client-side JavaScript manipulation

A flaw was found in Keycloak. An authenticated user can bypass configured WebAuthn policies during credential registration by manipulating client-side JavaScript. This occurs because the server-side processAction fails to validate that the newly created credential's parameters, such as public key...

CVE-2026-46419

Yubico webauthn-server-core aka java-webauthn-server 2.8.0 before 2.8.2 incorrectly checks a function's return value in the second factor flow, leading to impersonation...

Important: Red Hat Security Advisory: Red Hat build of Keycloak 26.4.12 Security Update

New Red Hat build of Keycloak 26.4.12 packages are available from the Customer Portal Red Hat build of Keycloak 26.4.12 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications. Security...

Astra Linux – Vulnerability in Firefox and Thunderbird

If a compromised content process sends an unexpected number of WebAuthN Extensions in a Register command to the parent process, an out-of-bounds write would occur, leading to memory corruption and potentially exploitable crashes. This vulnerability affects Thunderbird 91.8, Firefox 99, and Firefo...

Astra Linux – Vulnerability in Firefox

A malicious website can enter fullscreen mode while simultaneously triggering a WebAuthn prompt. This could have obscured the fullscreen notification and could have been exploited in a spoofing attack. This vulnerability affects Firefox versions earlier than 119...

Astra Linux – Vulnerability in Firefox and Thunderbird

An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key handles and cross-origin key handles. This could have led to cross-origin account linking, violating the WebAuthn goals. This vulnerability affect...

GHSA-W4P5-RFH6-CWRV Keycloak: Unauthorized account takeover via WebAuthn token replay

A flaw was found in Keycloak. This authentication vulnerability allows a remote attacker to replay ExecuteActionsActionToken tokens within Keycloak's WebAuthn Web Authentication flow. By intercepting an execute-actions email link, an attacker can register their own authenticator to a victim's...

CVE-2026-37982 Keycloak: org.keycloak.authentication: keycloak: unauthorized account takeover via webauthn token replay

A flaw was found in Keycloak. This authentication vulnerability allows a remote attacker to replay ExecuteActionsActionToken tokens within Keycloak's WebAuthn Web Authentication flow. By intercepting an execute-actions email link, an attacker can register their own authenticator to a victim's...

Keycloak: Policy bypass during WebAuthn credential registration via client-side JavaScript manipulation

A flaw was found in Keycloak. An authenticated user can bypass configured WebAuthn policies during credential registration by manipulating client-side JavaScript. This occurs because the server-side processAction fails to validate that the newly created credential's parameters, such as public key...

CVE-2026-8830

A flaw was found in Keycloak. An authenticated user can bypass configured WebAuthn policies during credential registration by manipulating client-side JavaScript. This occurs because the server-side processAction fails to validate that the newly created credential's parameters, such as public key...

EUVD-2026-30841

A flaw was found in Keycloak. An authenticated user can bypass configured WebAuthn policies during credential registration by manipulating client-side JavaScript. This occurs because the server-side processAction fails to validate that the newly created credential's parameters, such as public key...

CVE-2026-8830

Technical details (affected product/version, root cause specifics, impact, or remediation) are not publicly available in the provided documents; monitor for updates.

CVE-2026-8830

A flaw was found in Keycloak. An authenticated user can bypass configured WebAuthn policies during credential registration by manipulating client-side JavaScript. This occurs because the server-side processAction fails to validate that the newly created credential's parameters, such as public key...

Keycloak 安全漏洞

Keycloak is an open-source identity and access management solution developed by Keycloak itself. Keycloak has a security vulnerability, which stems from the server’s processAction function not verifying the new credential parameters. This could lead to the creation of non-compliant credentials by...

Keycloak 安全漏洞

Keycloak is an open-source identity and access management solution developed by Keycloak itself. Keycloak has a security vulnerability, which stems from an authentication flaw in the WebAuthn process. This flaw allows remote attackers to reissue the ExecuteActionsActionToken token, enabling them ...