CVE-2026-86273 projeto-siga HTML-to-PDF Endpoint ExUtilController.java DownloadExterno.getUrl server-side request forgery
Remote attackers can exploit a server-side request forgery vulnerability in the HTML-to-PDF endpoint to access internal resources.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86273?
CVE-2026-86273 is a medium-severity server-side request forgery vulnerability in projeto-siga siga, published on 7 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-918
Which versions are affected by CVE-2026-86273?
How do I fix CVE-2026-86273?
No fix has been published for CVE-2026-86273 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-86273 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86273 exists.
Sources
Also known as GHSA-pcw6-8cpc-9hvx.