GHSA-R56G-Q4P6-M3P6 Kestra: SSRF via Pebble http() function allows unauthenticated access to internal services & cloud metadata

Summary The Pebble template engine's http function in Kestra OSS accepts user-controlled URLs without any validation, allowing Server-Side Request Forgery SSRF attacks. An unauthenticated attacker can import a malicious Flow YAML and execute it to access internal services, cloud metadata endpoint...