CVE-2026-27801 Vaultwarden: 2FA Bypass on Protected Actions due to Faulty Rate Limit Enforcement

Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwardenrs. Vaultwarden versions 1.34.3 and prior are susceptible to a 2FA bypass when performing protected actions. An attacker who gains authenticated access to a user’s account can exploit this bypass ...

CVE-2026-27801 Vaultwarden: 2FA Bypass on Protected Actions due to Faulty Rate Limit Enforcement

Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwardenrs. Vaultwarden versions 1.34.3 and prior are susceptible to a 2FA bypass when performing protected actions. An attacker who gains authenticated access to a user’s account can exploit this bypass ...

GHSA-22M3-C7VP-49FJ IRRd: web UI host header injection allows password reset poisoning via attacker-controlled email links

Impact An attacker can manipulate the HTTP Host header on a password reset or account creation request. The confirmation link in the resulting email can then point to an attacker-controlled domain. Opening the link in the email is sufficient to pass the token to the attacker, who can then use it ...

IRRd: web UI host header injection allows password reset poisoning via attacker-controlled email links

Impact An attacker can manipulate the HTTP Host header on a password reset or account creation request. The confirmation link in the resulting email can then point to an attacker-controlled domain. Opening the link in the email is sufficient to pass the token to the attacker, who can then use it ...

Vaultwarden has 2FA Bypass on Protected Actions due to Faulty Rate Limit Enforcement

Summary Vaultwarden v1.34.3 and prior are susceptible to a 2FA bypass when performing protected actions. An attacker who gains authenticated access to a users account can exploit this bypass to perform protected actions such as accessing the user's API key or deleting the user's vault and...

EUVD-2026-9501

Vaultwarden has 2FA Bypass on Protected Actions due to Faulty Rate Limit Enforcement...

GHSA-V6PG-V89R-W8WR Vaultwarden has 2FA Bypass on Protected Actions due to Faulty Rate Limit Enforcement

Summary Vaultwarden v1.34.3 and prior are susceptible to a 2FA bypass when performing protected actions. An attacker who gains authenticated access to a users account can exploit this bypass to perform protected actions such as accessing the user's API key or deleting the user's vault and...

PT-2026-23105

Name of the Vulnerable Software and Affected Versions ZITADEL versions 4.0.0 through 4.11.1 Description ZITADEL, an open source identity management platform, has a flaw in its login V2 interface that could allow for account takeover via Default URI Redirect. An unauthenticated remote attacker can...

PT-2026-23064

Name of the Vulnerable Software and Affected Versions Vaultwarden versions 1.34.3 and prior Description Vaultwarden, a Bitwarden compatible server, is susceptible to a 2FA bypass when performing protected actions. An attacker who gains authenticated access to a user’s account can exploit this...

Europol, Microsoft, TrendAI™ and Collaborators Halt Tycoon 2FA Operations

Tycoon 2FA was dismantled this week by law enforcement and industry partners including TrendAI™. The phishing-as-a-service platform offered MFA bypass services using adversary-in-the-middle AitM proxying...

PT-2026-23087

Name of the Vulnerable Software and Affected Versions Internet Routing Registry daemon versions 4.4.0 through 4.4.5 Internet Routing Registry daemon versions 4.5.0 through 4.5.1 Description The Internet Routing Registry daemon IRRD is susceptible to a manipulation issue affecting password reset a...

Vaultwarden 安全漏洞

Vaultwarden is an alternative implementation of the Bitwarden server API, developed by Daniel García. Versions of Vaultwarden 1.34.3 and earlier contained security vulnerabilities. These vulnerabilities stemmed from the ability to bypass two-factor authentication when performing protected...

SUSE CVE-2026-3388

A vulnerability was found in Squirrel up to 3.2. This affects the function SQCompiler::Factor/SQCompiler::UnaryOP of the file squirrel/sqcompiler.cpp. Performing a manipulation results in uncontrolled recursion. The attack needs to be approached locally. The exploit has been made public and could...

OneUptime has WebAuthn 2FA bypass: server accepts client-supplied challenge instead of server-stored value, allowing credential replay

Summary The WebAuthn authentication implementation does not store the challenge on the server side. Instead, the challenge is returned to the client and accepted back from the client request body during verification. This violates the WebAuthn specification W3C Web Authentication Level 2, §13.4.3...

GHSA-GJJC-PCWP-C74M OneUptime has WebAuthn 2FA bypass: server accepts client-supplied challenge instead of server-stored value, allowing credential replay

Summary The WebAuthn authentication implementation does not store the challenge on the server side. Instead, the challenge is returned to the client and accepted back from the client request body during verification. This violates the WebAuthn specification W3C Web Authentication Level 2, §13.4.3...

Cyber Essentials Plus in 2026: Strengthened Controls, UK Cyber Reality & How Qualys Supports Compliance

Key Takeaways CE+ 2026 Updates: Effective April 2026, Cyber Essentials Plus requires stronger technical proof of control effectiveness, mandatory MFA, and tighter patching windows. Cloud and Identity in Scope: Audits now explicitly include cloud services and identity configurations, demanding...

CVE-2026-3388

A flaw was found in Squirrel. A local user can perform a manipulation within the SQCompiler::Factor or SQCompiler::UnaryOP functions, leading to uncontrolled recursion. This vulnerability can result in a Denial of Service DoS, making the affected system or application unavailable...

PT-2026-22998

Name of the Vulnerable Software and Affected Versions OneUptime versions 10.0.11 and prior Description The WebAuthn authentication implementation does not store the challenge on the server side. Instead, the challenge is returned to the client and accepted back from the client request body during...

Missing Critical Step in Authentication

Overview org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services. Affected versions of this package are vulnerable to Missing Critical Step in Authentication due to insufficient validation of the authentication Level of Assuran...

CVE-2026-3388 Squirrel sqcompiler.cpp UnaryOP recursion

A vulnerability was found in Squirrel up to 3.2. This affects the function SQCompiler::Factor/SQCompiler::UnaryOP of the file squirrel/sqcompiler.cpp. Performing a manipulation results in uncontrolled recursion. The attack needs to be approached locally. The exploit has been made public and could...