private-landing

Private Landing Learn authentication by building it right. Live Demo · Threat Model · Auth Flows · ADRs Demo note: The login endpoint is protected by adaptive PoW challenges — repeated failures return increasing proof-of-work difficulty. Cache-backed rate limiting is implemented and tested but no...

fips203

NCC Group: Estándar de Mecanismo de Encapsulación de Claves Basado en Retículos Modulares FIPS 203 El FIPS 203 Borrador Público Inicial Estándar de Mecanismo de Encapsulación de Claves Basado en Retículos Modulares está escrito en Rust puro para aplicaciones de servidor, escritorio, navegador y...

EUVD-2026-65215

Grav: Non constant time nonce comparison in Utils::verifyNonce used for CSRF protection...

CVE-2026-70658 pay-rails/pay: non-constant-time HMAC comparison in Paddle Billing webhook signature verifier

Pay is a payments engine for Ruby on Rails 6.0 and higher. Prior to 11.6.2, Pay::Webhooks::PaddleBillingControllervalidsignature? in app/controllers/pay/webhooks/paddlebillingcontroller.rb compares the computed 64-character SHA-256 HMAC with the attacker-controlled h1 token from the...

CVE-2026-70658

Pay is a payments engine for Ruby on Rails 6.0+. Prior to version 11.6.2 , the method Pay::Webhooks::PaddleBillingController#valid_signature? compares the computed 64-character SHA-256 HMAC against the attacker-controlled h1 token from the Paddle-Signature header using Ruby's String#== (a non-con...

CVE-2026-70658 pay-rails/pay: non-constant-time HMAC comparison in Paddle Billing webhook signature verifier

Pay is a payments engine for Ruby on Rails 6.0 and higher. Prior to 11.6.2, Pay::Webhooks::PaddleBillingControllervalidsignature? in app/controllers/pay/webhooks/paddlebillingcontroller.rb compares the computed 64-character SHA-256 HMAC with the attacker-controlled h1 token from the...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: SCTP: The comparison of MACs has been fixed to require constant-time operations. To prevent timing attacks, MACs need to be compared in constant-time. Use the appropriate helper function for this purpose...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net/tcpmd5: The comparison of MACs has been fixed to require constant time. To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper functions for this purpose...

Astra Linux – Vulnerability in Heimdal

The fix for CVE-2022-3437 involved changing the memcmp function to run in constant time, as well as providing a workaround for a compiler bug by adding comparisons of the result with the value “!= 0” to the memcmp function. When these patches were backported to the heimdal-7.7.1 and heimdal-7.8.0...

mlkem-native

mlkem-native mlkem-native es una implementación segura, rápida y portable en C901 de ML-KEM2. Es un fork de la implementación de referencia de ML-KEM3. Todo el código C en mlkem/src/ y mlkem/src/fips202/ está demostrado como seguro en memoria sin desbordamientos de memoria y seguro en tipos sin...

apr-util: Apache Portable Runtime Utility: Information disclosure via timing attack in password validation

A flaw was found in Apache Portable Runtime Utility apr-util. The aprpasswordvalidate function does not perform constant-time comparisons for hashes or passwords. This vulnerability allows a remote attacker to conduct a timing attack, particularly on platforms without crypt such as Windows, BeOS,...

apr-util: Apache Portable Runtime Utility: Information disclosure via timing attack in password validation

A flaw was found in Apache Portable Runtime Utility apr-util. The aprpasswordvalidate function does not perform constant-time comparisons for hashes or passwords. This vulnerability allows a remote attacker to conduct a timing attack, particularly on platforms without crypt such as Windows, BeOS,...

DRUPAL-CONTRIB-2026-144

This module allows you to configure your Drupal site as a SAML 2.0 Service Provider so that users can authenticate through an external identity provider. The module uses cryptographic constructions that do not align with current security best practices. The module performs certain signature...

phpseclib — non-constant-time X25519 scalar multiplication permits full private-key recovery

The pure-PHP X25519 scalar multiplication in phpseclib is not constant-time. Field addition and subtraction each perform a data-dependent conditional modular reduction, so the cost of each Montgomery-ladder step is a linear function of that step's reduction count which is a quantity determined by...

GHSA-Q97C-8QH3-FPC6 phpseclib — non-constant-time X25519 scalar multiplication permits full private-key recovery

The pure-PHP X25519 scalar multiplication in phpseclib is not constant-time. Field addition and subtraction each perform a data-dependent conditional modular reduction, so the cost of each Montgomery-ladder step is a linear function of that step's reduction count which is a quantity determined by...

USN-8719-1: APR-util vulnerabilities

It was discovered that APR-util incorrectly performed password hash comparisons in a way that was not constant-time. An attacker could possibly use this issue to obtain sensitive information. CVE-2025-49506 It was discovered that APR-util incorrectly handled recursive XML element quoting. An...

USN-8719-1 apr-util vulnerabilities

It was discovered that APR-util incorrectly performed password hash comparisons in a way that was not constant-time. An attacker could possibly use this issue to obtain sensitive information. CVE-2025-49506 It was discovered that APR-util incorrectly handled recursive XML element quoting. An...

CVE-2026-59276

Several components in Spring Security compare security-sensitive values using standard string equality String.equals rather than a constant-time comparison. Because String.equals returns as soon as it finds a differing character, the time taken to reject an incorrect value is proportional to the...

CVE-2026-55785

free5GC is an open-source implementation of the 5G core network. Prior to 1.4.5, the AUSF component performs cryptographic authentication comparisons in internal/sbi/processor/ueauthentication.go with ordinary equality helpers. Auth5gAkaComfirmRequestProcedure compares RES and XRES with...

free5GC AUSF uses non-constant-time authentication comparisons and logs XRES* in 5G-AKA

Summary The AUSF component of free5GC compares authentication response values with normal Go equality helpers instead of constant-time cryptographic comparison functions. Two authentication flows are affected in internal/sbi/processor/ueauthentication.go: 1. 5G-AKA confirmation compares RES and...