CVE-2026-77696

Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel. Impact summary: An attacker able to measure SM2 signing times may learn information about the per-signature secret nonce, which over many signatures can, via a lattice / Hidd...

CVE-2026-54875

Issue summary: A non-constant-time optimized implementation of scalar point multiplication is used for SM2 private key operations on ARM64 and RISC-V platforms. Impact summary: An attacker able to measure the time taken by, or to observe the cache-line access pattern of SM2 signing or decryption ...

UBUNTU-CVE-2026-54875

Issue summary: A non-constant-time optimized implementation of scalar point multiplication is used for SM2 private key operations on ARM64 and RISC-V platforms. Impact summary: An attacker able to measure the time taken by, or to observe the cache-line access pattern of SM2 signing or decryption ...

CVE-2026-54875

Issue summary: A non-constant-time optimized implementation of scalar point multiplication is used for SM2 private key operations on ARM64 and RISC-V platforms. Impact summary: An attacker able to measure the time taken by, or to observe the cache-line access pattern of SM2 signing or decryption ...

CVE-2026-77696: Observable Timing Discrepancy

Issue summary: SM2 signature generation uses non-constant-time arithmetic on secret values, forming a timing side-channel. Impact summary: An attacker able to measure SM2 signing times may learn information about the per-signature secret nonce, which over many signatures can, via a lattice / Hidd...

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-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...

Astra Linux – Vulnerability in SQLite3

In SQLite before version 3.32.3, select.c improperly handled the query-flattener optimization, resulting in a multiSelectOrderBy heap overflow due to the misuse of transitive properties for constant propagation...

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...

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,...