CVE-2026-1777

The Amazon SageMaker Python SDK before v3.2.0 and v2.256.0 includes the ModelBuilder HMAC signing key in the cleartext response elements of the DescribeTrainingJob function. A third party with permissions to both call this API and permissions to modify objects in the Training Jobs S3 output...

CVE-2026-1777 Cleartext transmission of sensitive materials in aws/sagemaker-python-sdk

The Amazon SageMaker Python SDK before v3.2.0 and v2.256.0 includes the ModelBuilder HMAC signing key in the cleartext response elements of the DescribeTrainingJob function. A third party with permissions to both call this API and permissions to modify objects in the Training Jobs S3 output...

Fundamentals, Recent Advances, and Challenges Regarding Cryptographic Algorithms for the Quantum Computing Era

This book arises from the need to provide a clear and up-to-date overview of the impacts of quantum computing on cryptography. The goal is to provide a reference in Portuguese for undergraduate, master's, and doctoral students in the field of data security and cryptography. Throughout the chapter...

CVE-2025-52026

An information disclosure vulnerability exists in the /srvs/membersrv/getCashiers endpoint of the Aptsys gemscms backend platform thru 2025-05-28. This unauthenticated endpoint returns a list of cashier accounts, including names, email addresses, usernames, and passwords hashed using MD5. As MD5 ...

RustFS's RPC signature verification logs shared secret

Summary Invalid RPC signatures cause the server to log the shared HMAC secret and expected signature, which exposes the secret to log readers and enables forged RPC calls. Details In crates/ecstore/src/rpc/httpauth.rs:115-122 , the invalid signature branch logs sensitive data: rs if signature !=...

SUSE CVE-2025-68113

ALTCHA is privacy-first software for captcha and bot protection. A cryptographic semantic binding flaw in ALTCHA libraries allows challenge payload splicing, which may enable replay attacks. The HMAC signature does not unambiguously bind challenge parameters to the nonce, allowing an attacker to...

Quantum-Resistant Cryptographic Models for Next-Gen Cybersecurity

Another threat is the development of large quantum computers, which have a high likelihood of breaking the high popular security protocols because it can use both Shor and Grover algorithms. In order to fix this looming threat, quantum-resistant cryptographic systems, otherwise known as...

NGCaptcha: A CAPTCHA Bridging the past and the Future

CAPTCHAs are widely employed for distinguishing humans from automated bots online. However, current vision based CAPTCHAs face escalating security risks: traditional attacks continue to bypass many deployed CAPTCHA schemes, and recent breakthroughs in AI, particularly large scale vision models,...

GHSA-6GVQ-JCMP-8959 ALTCHA Proof-of-Work Vulnerable to Challenge Splicing and Replay

Impact A cryptographic semantic binding flaw in ALTCHA libraries allows challenge payload splicing, which may enable replay attacks. The HMAC signature does not unambiguously bind challenge parameters to the nonce, allowing an attacker to reinterpret a valid proof-of-work submission with a modifi...

CVE-2025-64989 Command Injection in 1E-Explorer-TachyonCore-FindFileBySizeAndHash Instruction

A command injection vulnerability was discovered in TeamViewer DEX former 1E DEX, specifically within the 1E-Explorer-TachyonCore-FindFileBySizeAndHash instruction prior V21.1. Improper input validation, allowing authenticated attackers with Actioner privileges to inject arbitrary commands...

CVE-2013-10031

Plack-Middleware-Session (Perl) versions before 0.17 are vulnerable to HMAC comparison timing attacks. Affected component: Plack::Middleware::Session; root cause is a timing-attack vulnerability in HMAC comparison. Impact is described as a potential exposure via timing differences, with no explic...

CVE-2025-66511

Nextcloud Calendar is a calendar app for Nextcloud. Prior to 6.0.3, the Calendar app generates participant tokens for meeting proposals using a hash function, allowing an attacker to compute valid participant tokens, which allowed them to request details and submit dates in meeting proposals. The...

CVE-2025-66511 Nextcloud Calendar app used predictable proposal participant tokens

Nextcloud Calendar is a calendar app for Nextcloud. Prior to 6.0.3, the Calendar app generates participant tokens for meeting proposals using a hash function, allowing an attacker to compute valid participant tokens, which allowed them to request details and submit dates in meeting proposals. The...

GHSA-869P-CJFG-CM3X auth0/node-jws Improperly Verifies HMAC Signature

Overview An improper signature verification vulnerability exists when using auth0/node-jws with the HS256 algorithm under specific conditions. Am I Affected? You are affected by this vulnerability if you meet all of the following preconditions: 1. Application uses the auth0/node-jws implementatio...

[SECURITY] [DSA 6069-1] openvpn security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6069-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso December 03, 2025 https://www.debian.org/security/faq -...

Deterministic Random Bit Generators Based on Ascon for Embedded Systems

As the Deterministic Random Bit Generator DRBG serves as a fundamental component in random number generation and cryptographic applications, its performance and security are particularly critical in resource-constrained embedded systems, where memory capacity and computational efficiency are...

USN-7898-1 openvpn vulnerability

Joshua Rogers discovered that OpenVPN incorrectly handled HMAC verification checks. A remote attacker could possibly use this issue to bypass source IP address validation...

USN-7898-1: OpenVPN vulnerability

Joshua Rogers discovered that OpenVPN incorrectly handled HMAC verification checks. A remote attacker could possibly use this issue to bypass source IP address validation...

CVE-2025-55796

The openml/openml.org web application version v2.0.20241110 uses predictable MD5-based tokens for critical user workflows such as signup confirmation, password resets, email confirmation resends, and email change confirmation. These tokens are generated by hashing the current timestamp formatted ...

CVE-2025-55796

OpenML Frontend (openml.org) web app version v2.0.20241110 is affected by a token-generation flaw. Tokens used for signup confirmation, password resets, email confirmations/resends, and email changes are MD5-based and generated from the current timestamp (format "%d %H:%M:%S") without user-specif...