CVE-2026-63237 TOTP two-factor authentication bypass vulnerability

A TOTP two-factor authentication bypass vulnerability in Koollab LMS allowed an attacker to supply a client-controlled seed to generate a matching one-time password and bypass the second authentication factor, potentially enabling unauthorised access to administrator accounts...

CVE-2026-63237

A TOTP two-factor authentication bypass vulnerability in Koollab LMS allowed an attacker to supply a client-controlled seed to generate a matching one-time password and bypass the second authentication factor, potentially enabling unauthorised access to administrator accounts...

EUVD-2026-50132

A TOTP two-factor authentication bypass vulnerability in Koollab LMS allowed an attacker to supply a client-controlled seed to generate a matching one-time password and bypass the second authentication factor, potentially enabling unauthorised access to administrator accounts...

BIT-OPENBAO-2025-55003 OpenBao Login MFA Bypasses Rate Limiting and TOTP Token Reuse

OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 2.3.1 and below, OpenBao's Login Multi-Factor Authentication MFA system allows enforcing MFA using Time-based One Time Password TOTP. Due to...

EUVD-2026-41613

Gitea: TOTP TOCTOU race on web 2FA paths + missing replay check on Basic-Auth X-Gitea-OTP surface...

CVE-2026-62236

grav-plugin-login before 3.8.11 contains a cross-site request forgery CSRF vulnerability in the login.regenerate2FASecret frontend task, which regenerates and persists a new TOTP secret for the authenticated session user without any anti-CSRF nonce or Origin/Referer check. Because Grav core...

CVE-2026-57574

Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a vulnerability in Time-based One-Time Password TOTP authentication in UserAuthService where insufficient validation of used tokens allows the reuse of a single-use code within its valid time step. If...

CVE-2026-57574

Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a vulnerability in Time-based One-Time Password TOTP authentication in UserAuthService where insufficient validation of used tokens allows the reuse of a single-use code within its valid time step. If...

CVE-2026-57574 Misskey: TOTP tokens can be reused

Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a vulnerability in Time-based One-Time Password TOTP authentication in UserAuthService where insufficient validation of used tokens allows the reuse of a single-use code within its valid time step. If...

CVE-2026-57574

This CVE affects Misskey, an open-source federated social platform, where the vulnerability resides in the Time-based One-Time Password (TOTP) authentication in UserAuthService. The issue results from insufficient validation of used TOTP tokens, allowing a single-use code to be reused within its ...

CVE-2026-55370

Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, Logto's existing TOTP verification accepted a successfully used TOTP code again while the code remained inside the RFC 6238 acceptance window because the verifier used otplib's stateless check with window ...

CVE-2026-55370 Logto: TOTP code can be replayed within the RFC 6238 validity window (one-time use violation)

Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, Logto's existing TOTP verification accepted a successfully used TOTP code again while the code remained inside the RFC 6238 acceptance window because the verifier used otplib's stateless check with window ...

EUVD-2026-43011

Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, Logto's existing TOTP verification accepted a successfully used TOTP code again while the code remained inside the RFC 6238 acceptance window because the verifier used otplib's stateless check with window ...

CVE-2026-55370

Technical details about CVE-2026-55370 are not publicly available in the provided documents. Monitor for updates.

Replay Attack

Overview Affected versions of this package are vulnerable to Replay Attack in the TOTP authentication process. An attacker can gain unauthorized access by reusing a previously valid one-time password across web two-factor authentication flows and the Basic Auth X-Gitea-OTP path. Remediation Upgra...

Replay Attack

Overview Affected versions of this package are vulnerable to Replay Attack in the TOTP authentication process. An attacker can gain unauthorized access by reusing a previously valid one-time password across web two-factor authentication flows and the Basic Auth X-Gitea-OTP path. Remediation Upgra...

Replay Attack

Overview Affected versions of this package are vulnerable to Replay Attack in the TOTP authentication process. An attacker can gain unauthorized access by reusing a previously valid one-time password across web two-factor authentication flows and the Basic Auth X-Gitea-OTP path. Remediation Upgra...

Replay Attack

Overview Affected versions of this package are vulnerable to Replay Attack in the TOTP authentication process. An attacker can gain unauthorized access by reusing a previously valid one-time password across web two-factor authentication flows and the Basic Auth X-Gitea-OTP path. Remediation Upgra...

Replay Attack

Overview Affected versions of this package are vulnerable to Replay Attack in the TOTP authentication process. An attacker can gain unauthorized access by reusing a previously valid one-time password across web two-factor authentication flows and the Basic Auth X-Gitea-OTP path. Remediation Upgra...

CVE-2026-20779

Gitea versions from 1.5.0 before 1.26.3 have a TOTP single-use enforcement defect that allows a valid TOTP code to be accepted more than once across web two-factor authentication flows and the Basic Auth X-Gitea-OTP path...