SSRF in Projeto-Siga Siga
CVE-2026-86273
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.005 (41.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Projeto-Siga Siga — versions 11.1.0, 11.1.1
Weakness classification (CWE)
References
- vuldb.com/vuln/399434 (technical-description, vdb-entry)
- vuldb.com/vuln/399434/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-86273 (third-party-advisory)
- vuldb.com/submit/904863 (third-party-advisory)
- github.com/projeto-siga/siga/issues/2492 (issue-tracking, exploit)
- github.com/projeto-siga/siga/ (product)
Frequently asked questions
- What is CVE-2026-86273?
- CVE-2026-86273 is a high-severity vulnerability in Projeto-Siga Siga, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.3/10. Published 2026-09-07.
- How severe is CVE-2026-86273?
- High severity. CVSS v3 base score is 7.3 out of 10.