EUVD-2026-2029

n8n is an open source workflow automation platform. From 1.36.0 to before 2.2.0, the Webhook node’s IP whitelist validation performed partial string matching instead of exact IP comparison. As a result, an incoming request could be accepted if the source IP address merely contained the configured...

CVE-2025-68949 n8n has a Webhook Node IP Whitelist Bypass via Partial String Matching

n8n is an open source workflow automation platform. From 1.36.0 to before 2.2.0, the Webhook node’s IP whitelist validation performed partial string matching instead of exact IP comparison. As a result, an incoming request could be accepted if the source IP address merely contained the configured...

n8n: Webhook Node IP Whitelist Bypass via Partial String Matching

Impact The Webhook node’s IP whitelist validation performed partial string matching instead of exact IP comparison. As a result, an incoming request could be accepted if the source IP address merely contained the configured whitelist entry as a substring. This issue affected instances where...

GHSA-W96V-GF22-CRWP n8n: Webhook Node IP Whitelist Bypass via Partial String Matching

Impact The Webhook node’s IP whitelist validation performed partial string matching instead of exact IP comparison. As a result, an incoming request could be accepted if the source IP address merely contained the configured whitelist entry as a substring. This issue affected instances where...

PT-2026-2559

n8n is an open source workflow automation platform. From 1.36.0 to before 2.2.0, the Webhook node’s IP whitelist validation performed partial string matching instead of exact IP comparison. As a result, an incoming request could be accepted if the source IP address merely contained the configured...

n8n 访问控制错误漏洞

n8n is a scalable workflow automation tool from n8n open source. An access control error vulnerability exists in n8n versions 1.36.0 through prior to 2.2.0, which stems from the IP whitelist validation of the Webhook node performing partial string matches instead of exact IP comparisons, which...

Stored Cross-Site Scripting (XSS)

n8n is vulnerable to Stored Cross-Site Scripting XSS. The vulnerability is due to improper sandbox enforcement when the “Respond to Webhook” node returns HTML content with executable scripts, which allows an attacker with workflow creation privileges to execute arbitrary JavaScript in the context...

CVE-2026-21894

n8n is an open source workflow automation platform. In versions from 0.150.0 to before 2.2.2, an authentication bypass vulnerability in the Stripe Trigger node allows unauthenticated parties to trigger workflows by sending forged Stripe webhook events. The Stripe Trigger creates and stores a Stri...

CVE-2017-18870

An issue was discovered in Mattermost Server before 4.5.0, 4.4.5, and 4.3.4. It mishandled webhook access control in the EnableOnlyAdminIntegrations case...

CVE-2019-20888

An issue was discovered in Mattermost Server before 5.7, 5.6.3, 5.5.2, and 4.10.5. It allows attackers to cause a denial of service memory consumption via an outgoing webhook or a slash command integration...

CVE-2020-12759

Zulip Server before 2.1.5 allows reflected XSS via the Dropbox webhook...

CVE-2024-39807

Mattermost versions 9.5.x = 9.5.5 and 9.8.0 fail to properly sanitize the recipients of a webhook event which allows an attacker monitoring webhook events to retrieve the channel IDs of archived or restored channels...

CVE-2021-41111

Rundeck is an open source automation service with a web console, command line tools and a WebAPI. Prior to versions 3.4.5 and 3.3.15, an authenticated user with authorization to read webhooks in one project can craft a request to reveal Webhook definitions and tokens in another project. The user...

CVE-2024-41664

Canarytokens help track activity and actions on a network. Prior to sha-8ea5315, Canarytokens.org was vulnerable to a blind SSRF in the Webhook alert feature. When a Canarytoken is created, users choose to receive alerts either via email or via a webhook. If a webhook is supplied when a Canarytok...

CVE-2021-41254

kustomize-controller is a Kubernetes operator, specialized in running continuous delivery pipelines for infrastructure and workloads defined with Kubernetes manifests and assembled with Kustomize. Users that can create Kubernetes Secrets, Service Accounts and Flux Kustomization objects, could...

CVE-2021-22246

A vulnerability was discovered in GitLab versions before 14.0.2, 13.12.6, 13.11.6. GitLab Webhook feature could be abused to perform denial of service attacks...

CVE-2026-0656

The iPaymu Payment Gateway for WooCommerce plugin for WordPress is vulnerable to Missing Authentication in all versions up to, and including, 2.0.2 via the 'checkipaymuresponse' function. This is due to the plugin not validating webhook request authenticity through signature verification or origi...

CVE-2026-21856

The Tarkov Data Manager is a tool to manage the Tarkov item data. Prior to commit 9bdb3a75a98a7047b6d70144eb1da1655d6992a8, a time based blind SQL injection vulnerability in the webhook edit and scanner api endpoints that allow an authenticated attacker to execute arbitrary SQL queries against th...

CVE-2026-21894

n8n is an open source workflow automation platform. In versions from 0.150.0 to before 2.2.2, an authentication bypass vulnerability in the Stripe Trigger node allows unauthenticated parties to trigger workflows by sending forged Stripe webhook events. The Stripe Trigger creates and stores a Stri...

CVE-2026-21894 n8n's Missing Stripe-Signature Verification Allows Unauthenticated Forged Webhooks

n8n is an open source workflow automation platform. In versions from 0.150.0 to before 2.2.2, an authentication bypass vulnerability in the Stripe Trigger node allows unauthenticated parties to trigger workflows by sending forged Stripe webhook events. The Stripe Trigger creates and stores a Stri...