CVE-2026-40194 phpseclib has a variable-time HMAC comparison in SSH2::get_binary_packet() using != instead of hash_equals()

phpseclib is a PHP secure communications library. Starting in 0.1.1 and prior to 3.0.51, 2.0.53, and 1.0.28, phpseclib\Net\SSH2::getbinarypacket uses PHP's != operator to compare a received SSH packet HMAC against the locally computed HMAC. != on equal-length binary strings in PHP uses memcmp,...

Node.js: Node.js: Information disclosure via timing oracle in HMAC verification

A flaw was found in Node.js. The HMAC Hash-based Message Authentication Code verification process uses a comparison method that does not take a constant amount of time. This non-constant-time comparison can leak timing information, which, under specific conditions where precise timing measurement...

OPENSUSE-SU-2026:20499-1 Security update for ovmf

This update for ovmf fixes the following issue: - CVE-2025-59438: mbedtls: padding oracle attack possible through timing of cipher error reporting bsc1252441...

SUSE-SU-2026:21018-1 Security update for ovmf

This update for ovmf fixes the following issue: - CVE-2025-59438: mbedtls: padding oracle attack possible through timing of cipher error reporting bsc1252441...

EUVD-2026-19818

Parse Server has a login timing side-channel reveals user existence...

Timing Attack

Overview parse-server is a version of the Parse backend that can be deployed to any infrastructure that can run Node.js. Affected versions of this package are vulnerable to Timing Attack via the login endpoint. An attacker can determine whether a username or email exists in the database by...

CVE-2026-39321

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.8.0-alpha.6 and 8.6.74, he login endpoint response time differs measurably depending on whether the submitted username or email exists in the database. When a user is not found, the...

Timing Attack

Overview openclaw is a 🦞 OpenClaw — Personal AI Assistant Affected versions of this package are vulnerable to Timing Attack through the secret comparison process. An attacker can infer secret length information by measuring timing differences during comparison operations. Remediation Upgrade...

Security Bulletin: IBM App Connect Enterprise Certified Container operands are vulnerable to path traversal (CVE-2026-29087) and timing oracle attacks (GHSA-gq3j-xvxp-8hrf)

Summary Node.js module hono is used by IBM App Connect Enterprise Certified Container. IBM App Connect Enterprise Certified Container operands are vulnerable to path traversal CVE-2026-29087 and timing oracle attacks GHSA-gq3j-xvxp-8hrf. This bulletin provides patch information to address the...

ROS-20260407-73-0040

A vulnerability in the net/ipv6/seg6hmac.c component of the Linux operating system kernel is associated with information leakage based on timing discrepancies. Exploitation of the vulnerability allows an attacker to cause a denial of service...

BIT-NODE-MIN-2026-21713

A flaw in Node.js HMAC verification uses a non-constant-time comparison when validating user-provided signatures, potentially leaking timing information proportional to the number of matching bytes. Under certain threat models where high-resolution timing measurements are possible, this behavior...

BIT-NODE-2026-21713

A flaw in Node.js HMAC verification uses a non-constant-time comparison when validating user-provided signatures, potentially leaking timing information proportional to the number of matching bytes. Under certain threat models where high-resolution timing measurements are possible, this behavior...

USN-8136-1: Dovecot vulnerabilities

It was discovered that Dovecot incorrectly handled invalid base64 SASL data. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 25.10. CVE-2025-59028 It was discovered that Dovecot script decode2text.sh incorrectly handled zip files. An attacke...

USN-8136-1 dovecot vulnerabilities

It was discovered that Dovecot incorrectly handled invalid base64 SASL data. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 25.10. CVE-2025-59028 It was discovered that Dovecot script decode2text.sh incorrectly handled zip files. An attacke...

EUVD-2026-17174

A flaw in Node.js HMAC verification uses a non-constant-time comparison when validating user-provided signatures, potentially leaking timing information proportional to the number of matching bytes. Under certain threat models where high-resolution timing measurements are possible, this behavior...

ALPINE-CVE-2026-21713

A flaw in Node.js HMAC verification uses a non-constant-time comparison when validating user-provided signatures, potentially leaking timing information proportional to the number of matching bytes. Under certain threat models where high-resolution timing measurements are possible, this behavior...

CVE-2026-21713

A flaw in Node.js HMAC verification uses a non-constant-time comparison when validating user-provided signatures, potentially leaking timing information proportional to the number of matching bytes. Under certain threat models where high-resolution timing measurements are possible, this behavior...

UBUNTU-CVE-2026-21713

A flaw in Node.js HMAC verification uses a non-constant-time comparison when validating user-provided signatures, potentially leaking timing information proportional to the number of matching bytes. Under certain threat models where high-resolution timing measurements are possible, this behavior...

CVE-2026-21713

A flaw in Node.js HMAC verification uses a non-constant-time comparison when validating user-provided signatures, potentially leaking timing information proportional to the number of matching bytes. Under certain threat models where high-resolution timing measurements are possible, this behavior...

CVE-2026-21713

A flaw in Node.js HMAC verification uses a non-constant-time comparison when validating user-provided signatures, potentially leaking timing information proportional to the number of matching bytes. Under certain threat models where high-resolution timing measurements are possible, this behavior...