CVE-2026-73247

Published: Aug 11, 2026Modified: Sep 9, 2026

8.6

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Exploitability: 3.9 / Impact: 4.0

Source: security-advisories@github.com (Secondary)

Description

Kestra is an open-source, event-driven orchestration platform. Prior to 2.0.0, Kestra's core/src/main/java/io/kestra/core/runners/pebble/functions/HttpFunction.java passes the user-controlled http() uri argument to URI.create() and the server-side HTTP client without restricting private, loopback, or link-local destinations, allowing an unauthenticated attacker to import and execute a flow that accesses internal services or cloud metadata.

Related CWEs

CWE-918

Server-Side Request Forgery (SSRF)

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

References (2)

https://github.com/kestra-io/kestra/security/advisories/GHSA-r56g-q4p6-m3p6

Source: security-advisories@github.com

https://github.com/kestra-io/kestra/security/advisories/GHSA-r56g-q4p6-m3p6

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.