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...

kanidm v1.11.2

Kanidm - Simple and Secure Identity Management About Kanidm is a simple and secure identity management platform, allowing other applications and services to offload the challenge of authenticating and storing identities to Kanidm. The goal of this project is to be a complete identity provider,...

Improper Authentication

Spring Security is vulnerable to Improper Authentication. The vulnerability is due to user verification state not being properly maintained with a distributed HTTP session store, allowing an attacker to bypass WebAuthn user verification...

CVE-2026-73313

XenForo before 2.3.13 contains a multi-factor authentication bypass vulnerability in the passkey TFA provider that allows an authenticated attacker to complete login as another user by submitting their own registered passkey credential during the WebAuthn assertion step. The passkey verification...

CVE-2026-73313 XenForo < 2.3.13 MFA Bypass via Passkey TFA Provider

XenForo before 2.3.13 contains a multi-factor authentication bypass vulnerability in the passkey TFA provider that allows an authenticated attacker to complete login as another user by submitting their own registered passkey credential during the WebAuthn assertion step. The passkey verification...

CVE-2026-73313

XenForo versions before 2.3.13 contain an MFA bypass vulnerability in the passkey TFA provider . During the WebAuthn assertion step, the passkey verification path performs a global credential lookup without validating that the matched credential belongs to the user whose login is pending. This al...

CVE-2026-73313 XenForo < 2.3.13 MFA Bypass via Passkey TFA Provider

XenForo before 2.3.13 contains a multi-factor authentication bypass vulnerability in the passkey TFA provider that allows an authenticated attacker to complete login as another user by submitting their own registered passkey credential during the WebAuthn assertion step. The passkey verification...

EUVD-2026-72784

XenForo before 2.3.13 contains a multi-factor authentication bypass vulnerability in the passkey TFA provider that allows an authenticated attacker to complete login as another user by submitting their own registered passkey credential during the WebAuthn assertion step. The passkey verification...

CVE-2026-73313: Incorrect Authorization

XenForo before 2.3.13 contains a multi-factor authentication bypass vulnerability in the passkey TFA provider that allows an authenticated attacker to complete login as another user by submitting their own registered passkey credential during the WebAuthn assertion step. The passkey verification...

PT-2026-87058

Name of the Vulnerable Software and Affected Versions XenForo versions prior to 2.3.13 Description A multi-factor authentication bypass exists in the passkey TFA provider. An authenticated attacker who possesses a target account's password can bypass multi-factor authentication on both the public...

GHSA-6HXQ-P678-4HR2 SimpleWebAuthn: Registration verification does not sufficiently ensure that attestation certificates chain to a trust anchor

Summary validateCertificatePath does not verify that an attestation's certificate chain actually terminates at a configured trust anchor. When walking the chain it stops at the first self-signed certificate it finds which could be user-supplied, and exits early. This happens before the configured...

Beyond the Trust Boundary: A Critical Reassessment of the FIDO2 Threat Model

FIDO2/WebAuthn has been widely deployed as a phishing-resistant authentication scheme. Because FIDO2 relies on public-key cryptography and hardware-backed authenticators, its security is often assumed to be guaranteed by design, provided that the cryptographic implementation is correct. In this...

CVE-2026-82466 Rodauth before 2.46.0 Authentication Bypass via webauthn_login

Rodauth before 2.46.0 contains an authentication bypass vulnerability in the webauthnlogin route that allows logged-in users to authenticate as any other account. Attackers can exploit improper account resolution logic that falls back to session account identifiers instead of validating the...

EUVD-2026-68123

Rodauth before 2.46.0 contains an authentication bypass vulnerability in the webauthnlogin route that allows logged-in users to authenticate as any other account. Attackers can exploit improper account resolution logic that falls back to session account identifiers instead of validating the...

CVE-2026-82466

Rodauth versions before 2.46.0 contain an authentication bypass in the webauthn_login route. The root cause is improper account resolution logic that falls back to session account identifiers instead of validating the credential binding, allowing a logged-in user to authenticate as any other acco...

PT-2026-83446

Name of the Vulnerable Software and Affected Versions Rodauth versions prior to 2.46.0 Description An authentication bypass exists in the 'webauthn login' route. Logged-in users can authenticate as any other account due to improper account resolution logic. The system incorrectly falls back to...

CVE-2026-47841

An application using Spring Security's WebAuthn support may be vulnerable to user verification bypass when using a distributed HTTP session store. Spring Security 7.1.0 Spring Security 7.0.0 - 7.0.6 Spring Security 6.5.0 - 6.5.11 Spring Security 6.4.0 - 6.4.18...

CVE-2026-47841

An application using Spring Security's WebAuthn support may be vulnerable to user verification bypass when using a distributed HTTP session store. Spring Security 7.1.0 Spring Security 7.0.0 - 7.0.6 Spring Security 6.5.0 - 6.5.11 Spring Security 6.4.0 - 6.4.18...

CVE-2026-47841 WebAuthn User Verification Bypass via Session Serialization

An application using Spring Security's WebAuthn support may be vulnerable to user verification bypass when using a distributed HTTP session store. Spring Security 7.1.0 Spring Security 7.0.0 - 7.0.6 Spring Security 6.5.0 - 6.5.11 Spring Security 6.4.0 - 6.4.18...