Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-86273
projeto-siga HTML-to-PDF Endpoint ExUtilController.java DownloadExterno.getUrl server-side request forgery
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
N L N N N L L L 5.5 .0050 40.3 —
AFFECTED
Product Versions Fixed
siga 11.1.0 – —
TIMELINE
Sep 6 Reserved by VulDB
Sep 7 Published (CNA: VulDB)
Sep 11 EXPLOIT PUBLISHED — CVE-2026-86273 (projeto-siga siga). Public exploit reference added.
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| September 6, 2026 | Reserved | Reserved by VulDB |
| September 7, 2026 | Published | Published (CNA: VulDB) |
| September 11, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-86273 (projeto-siga siga). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| projeto-siga | siga | — | 11.1.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-86273 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.