GHSA-JQPW-QWW5-CJ4C n8n: Denial of Service via ZIP decompression in webhook workflow

Impact The Compression node's Decompress operation expanded attacker-controlled archives into memory without enforcing limits on decompressed output size. An unauthenticated attacker could send a small compressed archive to a public webhook workflow using this node, causing the n8n process to...

NPM: n8n: Denial of Service via ZIP decompression in webhook workflow

NPM: n8n: Denial of Service via ZIP decompression in webhook workflow vulnerability discovered by ? in WordPress Npm n8n versions 2.24.0...

n8n: Denial of Service via ZIP decompression in webhook workflow

Impact The Compression node's Decompress operation expanded attacker-controlled archives into memory without enforcing limits on decompressed output size. An unauthenticated attacker could send a small compressed archive to a public webhook workflow using this node, causing the n8n process to...

n8n: Reflected XSS via Facebook, WhatsApp, and Microsoft Teams Trigger Webhook Verification Endpoints

Impact An endpoint in the Meta and Microsoft Teams trigger nodes reflects a query parameter into the HTTP response without sanitization or Content-Security-Policy headers, enabling reflected XSS in the n8n origin when a logged-in user visits a crafted URL. Patches The issue has been fixed in n8n...

NPM: n8n: Reflected XSS via Facebook, WhatsApp, and Microsoft Teams Trigger Webhook Verification Endpoints

NPM: n8n: Reflected XSS via Facebook, WhatsApp, and Microsoft Teams Trigger Webhook Verification Endpoints vulnerability discovered by ? in WordPress Npm n8n versions 2.24.0...

GHSA-7CX2-G3H9-382P Crawl4AI: Arbitrary file write (symlink/TOCTOU) plus log and webhook-header injection in Docker server

Summary Three backward-compatible hardening fixes in the Docker API server. The headline issue is an arbitrary file write via the screenshot/PDF outputpath. 1. Arbitrary file write via outputpath symlink / TOCTOU primary POST /screenshot and POST /pdf accept an outputpath constrained to...

Crawl4AI: Arbitrary file write (symlink/TOCTOU) plus log and webhook-header injection in Docker server

Summary Three backward-compatible hardening fixes in the Docker API server. The headline issue is an arbitrary file write via the screenshot/PDF outputpath. 1. Arbitrary file write via outputpath symlink / TOCTOU primary POST /screenshot and POST /pdf accept an outputpath constrained to...

Server-side Request Forgery (SSRF)

Overview Crawl4AI is a 🚀🤖 Crawl4AI: Open-source LLM Friendly Web Crawler & scraper Affected versions of this package are vulnerable to Server-side Request Forgery SSRF via the validatewebhookurl and validateurldestination functions. An attacker can access internal services and cloud metadata...

Crawl4AI: Multiple Docker API Vulnerabilities - File Write, SSRF, Auth Bypass, XSS, JS Execution

Summary Multiple security vulnerabilities in the Crawl4AI Docker API server affecting endpoints for crawling, markdown/LLM extraction, screenshots, PDFs, webhooks, monitoring, JavaScript execution, and configuration. Vulnerabilities 1. Arbitrary File Write via /screenshot and /pdf CWE-22, CVSS 9....

GHSA-2VFF-HJ5X-8GQ7 n8n: Prototype Pollution enables confused-deputy execution via public webhooks

Impact A prototype pollution vulnerability allowed a crafted public webhook payload to inject attacker-controlled fields into workflow data during internal object copying. These fields could be surfaced and consumed as normal values by downstream built-in nodes. Where a workflow combines a public...

n8n: Prototype Pollution enables confused-deputy execution via public webhooks

Impact A prototype pollution vulnerability allowed a crafted public webhook payload to inject attacker-controlled fields into workflow data during internal object copying. These fields could be surfaced and consumed as normal values by downstream built-in nodes. Where a workflow combines a public...

n8n: Same-Origin XSS in Respond to Webhook Node

Impact An authenticated user with workflow edit access could configure a Respond to Webhook node to serve binary content with an attacker-controlled Content-Type. The binary response path bypassed the central Content-Security-Policy sandbox header, allowing a public webhook to execute JavaScript ...

GHSA-V733-MWR6-FGCM n8n: Same-Origin XSS in Respond to Webhook Node

Impact An authenticated user with workflow edit access could configure a Respond to Webhook node to serve binary content with an attacker-controlled Content-Type. The binary response path bypassed the central Content-Security-Policy sandbox header, allowing a public webhook to execute JavaScript ...

NPM: n8n: Same-Origin XSS in Respond to Webhook Node

NPM: n8n: Same-Origin XSS in Respond to Webhook Node vulnerability discovered by ? in WordPress Npm n8n versions 1.123.55...

BIT-DISCOURSE-2026-47263 Discourse: Prevent webhook payload disclosure on event redelivery

Discourse is an open-source discussion platform. From versions 2026.1.0 to before 2026.1.4, 2026.3.0 to before 2026.3.1, and 2026.4.0 to before 2026.4.1, the MessageBus.publish call for /webhookevents/ in Jobs::RedeliverWebHookEvents did not pass groupids, leaving the channel readable by any...

Malicious code in carousel-controller-mixin (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector c1a4b1be297682ca77d8a92fc502887ee6d718a5541fa88413acdc6accb3ed97 package.json declares both preinstall and postinstall hooks that execute callback.js on every install. callback.js collects username, uid, hostname,...

MAL-2026-5856 Malicious code in carousel-controller-mixin (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector c1a4b1be297682ca77d8a92fc502887ee6d718a5541fa88413acdc6accb3ed97 package.json declares both preinstall and postinstall hooks that execute callback.js on every install. callback.js collects username, uid, hostname,...

Malicious code in setka-editor (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector a9dd5cda5d5a0925c139a36f0ea4c69b96052ff203d7dc365ac119408ba76069 package.json registers both preinstall and postinstall lifecycle hooks that run node callback.js, which executes automatically on npm install...

MAL-2026-5859 Malicious code in setka-editor (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector a9dd5cda5d5a0925c139a36f0ea4c69b96052ff203d7dc365ac119408ba76069 package.json registers both preinstall and postinstall lifecycle hooks that run node callback.js, which executes automatically on npm install...

PT-2026-50174

Name of the Vulnerable Software and Affected Versions n8n versions prior to 2.25.7 n8n versions prior to 2.26.2 Description The MicrosoftAgent365Trigger and StripeTrigger nodes fail to validate inbound requests. This allows an unauthenticated attacker with knowledge of the webhook URL to submit a...