JLSEC-2026-688 Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into...

Multiple constant-time implementations in wolfSSL before version 5.8.4 may be transformed into non-constant-time binary by LLVM optimizations, which can potentially result in observable timing discrepancies and lead to information disclosure through timing side-channel attacks...

Non-constant time Authentication Tag Check in AES-GCM Decryption

AES-GCM decryption used an implementation for checking the provided authentication tag against the recomputed authentication tag that was intended to be constant-time, but resulted in non-constant-time code generation in certain circumstances. Note that libcrux-aesgcm does not give guarantees on...

PT-2026-64466

wolfSSL 5.8.4 on RISC-V RV32I architectures lacks a constant-time software implementation for 64-bit multiplication. The compiler-inserted muldi3 subroutine executes in variable time based on operand values. This affects multiple SP math functions sp 256 mul 9, sp 256 sqr 9, etc., leading to a...

PT-2026-64399

AES-GCM decryption used an implementation for checking the provided authentication tag against the recomputed authentication tag that was intended to be constant-time, but resulted in non-constant-time code generation in certain circumstances. Note that libcrux-aesgcm does not give guarantees on...

PYSEC-2026-3028 pyquorum: Timing side‑channel in mul_mod

Impact The mulmod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand the exponent. An attacker who can measure the time of secret‑sharing operations e.g., via a remote service could progressively recover the valu...

pyquorum: Timing side‑channel in mul_mod

ImpactThe mulmod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand the exponent. An attacker who can measure the time of secret‑sharing operations e.g., via a remote service could progressively recover the value...

CVE-2026-54736 Phalcon: Non-constant-time HMAC verification in `Encryption\Crypt::decrypt` (timing side-channel)

Phalcon is a high-performance, full-stack PHP framework. Prior to 5.14.1, Phalcon\Encryption\Crypt::decrypt compares the attacker-supplied HMAC tag against the freshly computed HMAC using PHP/Zephir identity comparison, which lowers to a byte-wise comparison that returns early on the first...

PT-2026-57320

Name of the Vulnerable Software and Affected Versions Phalcon versions prior to 5.14.1 Description The decrypt function within PhalconEncryptionCrypt uses a byte-wise identity comparison to verify the HMAC tag. Because this comparison returns early upon encountering the first differing byte, it...

UBUNTU-CVE-2026-15041

A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp for comparing password hashes instead of a constant-time comparison function. A remote attacker could potentially use timing measurements of LDAP bind attempts to infer partial hash...

PT-2026-61005

Name of the Vulnerable Software and Affected Versions xrdp versions prior to 0.10.6.1 Description The login interface contains a timing side-channel issue. A remote attacker can exploit discrepancies in response processing times to determine if a specific username exists on the system, resulting ...

OctoPrint has Timing Side-Channel Vulnerability in API Key Authentication

ImpactOctoPrint versions up to and including 1.11.5 are affected by a theoretical timing attack vulnerability that allows API key extraction over the network.Due to using character based comparison that short-circuits on the first mismatched character during API key validation, rather than a...

PYSEC-2026-1716 OctoPrint has Timing Side-Channel Vulnerability in API Key Authentication

Impact OctoPrint versions up to and including 1.11.5 are affected by a theoretical timing attack vulnerability that allows API key extraction over the network. Due to using character based comparison that short-circuits on the first mismatched character during API key validation, rather than a...

PYSEC-2026-1066 wolfCrypt leaks cryptographic information via timing side channel

wolfSSL and wolfCrypt 4.0.0 and earlier when configured without --enable-fpecc, --enable-sp, or --enable-sp-math contain a timing side channel in ECDSA signature generation. This allows a local attacker, able to precisely measure the duration of signature operations, to infer information about th...

wolfCrypt leaks cryptographic information via timing side channel

wolfSSL and wolfCrypt 4.0.0 and earlier when configured without --enable-fpecc, --enable-sp, or --enable-sp-math contain a timing side channel in ECDSA signature generation. This allows a local attacker, able to precisely measure the duration of signature operations, to infer information about th...

Debian dla-4670 : php-phpseclib - security update

The remote Debian 11 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-4670 advisory. - ----------------------------------------------------------------------- Debian LTS Advisory DLA-4670-1 [email protected]...

GHSA-G5VH-55HW-RXM8 GoFiber Vulnerable to Username Enumeration via Timing Oracle in BasicAuth Default Authorizer

Summary The default Authorizer function in GoFiber's BasicAuth middleware uses short-circuit evaluation that skips password hash comparison for non-existent usernames. With bcrypt-hashed passwords the primary use case, the timing difference between a valid and invalid username is approximately...

PT-2026-57509

Summary Pay::Webhooks::PaddleBillingControllervalid signature? app/controllers/pay/webhooks/paddle billing controller.rb verifies the Paddle Billing webhook signature by computing OpenSSL::HMAC.hexdigest... and comparing it to the attacker-supplied header value using Ruby's String==. Ruby's == is...

CVE-2026-13758

CryptX versions before 0.088001 for Perl compare AEAD authentication tags in non-constant time in the streaming decryptdone path. The decryptdone$tag form compares it against the computed tag with memNE memcmp != 0, which short-circuits on the first differing byte, so its run time depends on the...

CVE-2026-13758 CryptX versions before 0.088_001 for Perl compare AEAD authentication tags in non-constant time in the streaming decrypt_done path

CryptX versions before 0.088001 for Perl compare AEAD authentication tags in non-constant time in the streaming decryptdone path. The decryptdone$tag form compares it against the computed tag with memNE memcmp != 0, which short-circuits on the first differing byte, so its run time depends on the...

gnutls: gnutls: Information disclosure via timing side-channel in PKCS#7 padding removal

A flaw was found in gnutls. The PKCS7 padding check, performed during decryption, was not constant-time. This timing side-channel could allow a remote attacker to potentially leak sensitive information about the padding bytes through observable timing differences. This vulnerability is a form of...