PKCS7_verify Signature Validation Bypass in AWS-LC

Improper signature validation in PKCS7verify in AWS-LC allows an unauthenticated user to bypass signature verification when processing PKCS7 objects with Authenticated Attributes. Customers of AWS services do not need to take action. aws-lc-sys contains code from AWS-LC. Applications using...

RUSTSEC-2026-0047 PKCS7_verify Signature Validation Bypass in AWS-LC

Improper signature validation in PKCS7verify in AWS-LC allows an unauthenticated user to bypass signature verification when processing PKCS7 objects with Authenticated Attributes. Customers of AWS services do not need to take action. aws-lc-sys contains code from AWS-LC. Applications using...

Security Bulletin: Multiple Vulnerabilities affect IBM Decision Optimization for Cloud Pak for Data.

Summary Multiple Vulnerabilities were addressed in IBM Decision Optimization for Cloud Pak for Data version 5.3 Vulnerability Details CVEID:CVE-2025-65945 DESCRIPTION: auth0/node-jws is a JSON Web Signature implementation for Node.js. In versions 3.2.2 and earlier and version 4.0.0, auth0/node-jw...

AWS libcrypto 安全漏洞

AWS libcrypto is a general-purpose encryption library open sourced by Amazon Web Services. Versions of AWS libcrypto prior to 1.69.0 contained security vulnerabilities. These vulnerabilities stemmed from improper signature verification in the PKCS7verify function. This allowed for bypassing the...

PT-2026-22704

Name of the Vulnerable Software and Affected Versions AWS-LC versions prior to 1.69.0 Description A flaw exists in the PKCS7 verify function within AWS-LC that permits an unauthenticated user to circumvent signature verification when handling PKCS7 objects containing Authenticated Attributes. Thi...

Ubuntu 22.04 LTS / 24.04 LTS : Authlib vulnerabilities (USN-8065-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8065-1 advisory. Millie Solem discovered that Authlib did not properly restrict algorithm selection during JWT verification, allowing HMAC verification with...

CVE-2026-1305

The Japanized for WooCommerce plugin for WordPress is vulnerable to Improper Authentication in versions up to, and including, 2.8.4. This is due to a flawed permission check in the paidywebhookpermissioncheck function that unconditionally returns true when the webhook signature header is omitted...

PT-2026-22329

The Japanized for WooCommerce plugin for WordPress is vulnerable to Improper Authentication in versions up to, and including, 2.8.4. This is due to a flawed permission check in the paidy webhook permission check function that unconditionally returns true when the webhook signature header is...

n8n has Webhook Forgery on Zendesk Trigger Node

Impact An attacker who knows the webhook URL of a workflow using the ZendeskTrigger node could send unsigned POST requests and trigger the workflow with arbitrary data. The node does not verify the HMAC-SHA256 signature that Zendesk attaches to every outbound webhook, allowing any party to inject...

GHSA-38C7-23HJ-2WGQ n8n has Webhook Forgery on Zendesk Trigger Node

Impact An attacker who knows the webhook URL of a workflow using the ZendeskTrigger node could send unsigned POST requests and trigger the workflow with arbitrary data. The node does not verify the HMAC-SHA256 signature that Zendesk attaches to every outbound webhook, allowing any party to inject...

CVE-2026-24890

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, an authorization bypass vulnerability in the patient portal signature endpoint allows authenticated portal users to upload and overwrite provider signatures by setting...

CVE-2026-26078

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, when the patreonwebhooksecret site setting is blank, an attacker can forge valid webhook signatures by computing an HMAC-MD5 with an empty string as the key. Since the request body is known to th...

GHSA-MQPR-49JJ-32RC n8n: Webhook Forgery on Github Webhook Trigger

Impact An attacker who knows the webhook URL of a workflow using the GitHub Webhook Trigger node could send unsigned POST requests and trigger the workflow with arbitrary data. The node did not implement the HMAC-SHA256 signature verification that GitHub provides to authenticate webhook deliverie...

n8n: Webhook Forgery on Github Webhook Trigger

Impact An attacker who knows the webhook URL of a workflow using the GitHub Webhook Trigger node could send unsigned POST requests and trigger the workflow with arbitrary data. The node did not implement the HMAC-SHA256 signature verification that GitHub provides to authenticate webhook deliverie...

CVE-2026-26078 Discourse has authentication bypass vulnerability in the Patreon plugin webhook endpoint

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, when the patreonwebhooksecret site setting is blank, an attacker can forge valid webhook signatures by computing an HMAC-MD5 with an empty string as the key. Since the request body is known to th...

CVE-2026-26078 Discourse has authentication bypass vulnerability in the Patreon plugin webhook endpoint

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, when the patreonwebhooksecret site setting is blank, an attacker can forge valid webhook signatures by computing an HMAC-MD5 with an empty string as the key. Since the request body is known to th...

CVE-2026-26078

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, when the patreonwebhooksecret site setting is blank, an attacker can forge valid webhook signatures by computing an HMAC-MD5 with an empty string as the key. Since the request body is known to th...

EUVD-2026-8856

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, when the patreonwebhooksecret site setting is blank, an attacker can forge valid webhook signatures by computing an HMAC-MD5 with an empty string as the key. Since the request body is known to th...

CVE-2026-26078

Discourse’s Patreon webhook vulnerability (CVE-2026-26078) affects releases prior to 2025.12.2, 2026.1.1, and 2026.2.0. When patreon_webhook_secret is blank, an attacker can generate valid webhook signatures by computing an HMAC-MD5 with an empty key, using the known request body to forge arbitra...

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...