USN-8830-1 php-phpseclib vulnerabilities

It was discovered that phpseclib did not perform constant-time padding validation when using AES in CBC mode. A remote attacker could possibly use this issue to obtain sensitive information. CVE-2026-32935 It was discovered that phpseclib did not use a constant-time comparison when validating SSH...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: python3 (UTSA-2023-002655)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2023-002655 advisory. An issue was discovered in comparedigest in Lib/hmac.py in Python through 3.9.1. Constant-time-defeating optimisations were possible in the accumulator variable in...

EUVD-2026-65215

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

GHSA-38P6-H87P-R4CG Grav: Non constant time nonce comparison in Utils::verifyNonce() used for CSRF protection

Summary Grav\Common\Utils::verifyNonce, the core function Grav and its plugins use to validate CSRF nonces, compares the submitted nonce to the expected value with PHP's === operator instead of hashequals. === on strings short circuits at the first differing byte, so the comparison time leaks how...

cosmian_kyber is unmaintained

cosmiankyber is a fork of Argyle-Software/kyber that has seen no maintainer activity. It inherits the fork parent's broken AVX2 constant-time code, and the open fix pull request Cosmian/kyber6 has gone unanswered. Recommended alternatives: - aws-lc-rs - graviola...

PT-2026-99690

cosmian kyber is a fork of Argyle-Software/kyber that has seen no maintainer activity. It inherits the fork parent's broken AVX2 constant-time code, and the open fix pull request Cosmian/kyber6 has gone unanswered. Recommended alternatives: - aws-lc-rs - graviola...

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-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...

Fedora 45 : perl-Net-OAuth (2026-27bab0e213)

The remote Fedora 45 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-27bab0e213 advisory. Net::OAuth versions before 0.33 for Perl check HMAC-SHA1, HMAC-SHA256 and PLAINTEXT signatures with a non- constant-time comparison in verify. This update...

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...

SUSE 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...

PT-2026-89245

Name of the Vulnerable Software and Affected Versions Drupal SAML SSO - Service Provider versions 0.0.0 through 3.2.0 Description The module allows a Drupal site to function as a SAML 2.0 Service Provider for external identity provider authentication. It employs cryptographic constructions that...

SAML SSO - Service Provider - Critical - Weak cryptographic practices - SA-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...

Fedora 43 : perl-Net-OAuth (2026-370bd8b5f0)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-370bd8b5f0 advisory. Net::OAuth versions before 0.33 for Perl check HMAC-SHA1, HMAC-SHA256 and PLAINTEXT signatures with a non- constant-time comparison in verify. This update...