CVE-2026-86273: projeto-siga HTML-to-PDF Endpoint ExUtilController.java DownloadExterno.getUrl server-side request forgery
A weakness has been identified in projeto-siga siga up to 11.1.1. Affected by this issue is the function DownloadExterno.getUrl of the file sigaex/src/main/java/br/gov/jfrj/siga/vraptor/ExUtilController.java of the component HTML-to-PDF Endpoint. This manipulation of the argument html causes server-side request forgery. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Affected Software
Event History
Frequently Asked Questions
Does exploitation require authentication or user interaction?
No. The CVSS vector indicates the issue can be exploited remotely with no privileges and no user interaction required.
Which deployments should be treated as affected?
Projeto-siga installations up to and including version 11.1.1 that expose the HTML-to-PDF endpoint should be treated as affected.
Is exploit code available to attackers?
Yes. A public exploit has been reported as available, increasing the likelihood that the issue could be used in attacks.