Webhook-url-http-3a-2f-2f169.254.169.254-2fmetadata-2fidentity-2foauth2-2ftoken _verified_ Jun 2026

The documentation covers these technical aspects to ensure secure and efficient cloud operations. Share public link

The string http-3A-2F-2F169.254.169.254-2Fmetadata-2Fidentity-2Foauth2-2Ftoken is a URL-encoded version of a standard Azure IMDS path.

Webhooks are designed to allow an application to send automated, real-time data to an external server via user-defined HTTP requests. However, if the application does not properly sanitize or validate the user-supplied URL, it becomes vulnerable to SSRF.

This service is only accessible from within the running cloud instance itself. It is never supposed to be accessible from the public internet. 3. The Identity Token Path

A is a way for an application to provide other applications with real-time information. When you see a "Webhook URL" field in a web application, the app is essentially saying, "Give me a URL, and I will send data to it." The documentation covers these technical aspects to ensure

Example Python validation:

By understanding the mechanics behind this encoded URL, you can build resilient systems that resist even the cleverest SSRF attempts. Secure your webhooks, lock down your metadata service, and keep your cloud identities out of the hands of attackers.

Since SSRF originates from within the server, it can reach endpoints protected by perimeter firewalls. This effectively turns the ... Resecurity Azure SSRF with Workflow Designer Feature

In this deep-dive article, we will dissect every component of this keyword, explain why it poses a severe security risk, show how attackers exploit webhook functionality, and provide actionable steps to protect your infrastructure. However, if the application does not properly sanitize

When an attacker submits this encoded URL into an application's "Webhook URL" configuration field, they are attempting to execute an SSRF attack. The exploit unfolds in a sequence of specific architectural steps:

This URL represents a vulnerability and should not be used as a legitimate feature.

It represents the shift from hacking "files" to hacking "identities."

The string represents a critical configuration pattern often discovered during vulnerability assessments, source code reviews, or web application log analysis. This specific URL pattern reflects a URL-encoded string targeting the Azure Instance Metadata Service (IMDS) identity endpoint http://169.254.169.254/metadata/identity/oauth2/token . source code reviews

The IP address 169.254.169.254 is a link-local address used by cloud providers (specifically Azure in this context) to provide metadata to running virtual machine instances.

SSRF to AWS Metadata Exposure: How Attackers Steal Cloud ...

Methods to for the managed identity to minimize security risks.

Security teams can look for:

Stay vigilant. The next webhook URL you process might be a ticking time bomb.