GHSA-XJHR-FM27-4HMX OpenFUN Richie Observable Timing Discrepancy in its sync_course_run_from_request function

An issue in OpenFUN Richie LMS in src/richie/apps/courses/api.py. The application used the non-constant time == operator for HMAC signature verification in the synccourserunfromrequest function. This allows remote attackers to forge valid signatures and bypass authentication by measuring response...

OpenFUN Richie Observable Timing Discrepancy in its sync_course_run_from_request function

An issue in OpenFUN Richie LMS in src/richie/apps/courses/api.py. The application used the non-constant time == operator for HMAC signature verification in the synccourserunfromrequest function. This allows remote attackers to forge valid signatures and bypass authentication by measuring response...

CVE-2026-26717

An issue in OpenFUN Richie LMS in src/richie/apps/courses/api.py. The application used the non-constant time == operator for HMAC signature verification in the synccourserunfromrequest function. This allows remote attackers to forge valid signatures and bypass authentication by measuring response...

CVE-2026-27637

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.206, FreeScout's TokenAuth middleware uses a predictable authentication token computed as MD5userid + createdat + APPKEY. This token is static never expires/rotates, and if an attacker obtains...

Richie 安全漏洞

Richie is an open-source educational content management system developed by France Université Numérique. Richie has a security vulnerability. This vulnerability stems from the use of the non-constant time == operator in the synccourserunfromrequest function for HMAC signature verification. This...

CVE-2026-26717

An issue in OpenFUN Richie LMS in src/richie/apps/courses/api.py. The application used the non-constant time == operator for HMAC signature verification in the synccourserunfromrequest function. This allows remote attackers to forge valid signatures and bypass authentication by measuring response...

CVE-2025-68621

Trilium Notes has a timing-attack vulnerability in the sync authentication endpoint (/api/login/sync) affecting versions before 0.101.0. Unauthenticated remote attackers can recover HMAC hashes byte-by-byte via statistical timing analysis, enabling complete authentication bypass and full read/wri...

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...

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...

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

Versions of Plack-Middleware-Session before 0.17 for Perl are vulnerable to HMAC comparison timing attacks . This vulnerability is caused by incorrect comparison logic granularity, which could allow an attacker to deduce information through the time taken to perform comparisons. No specific explo...

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...