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-2026-86274
projeto-siga Authentication Flow ExAutenticacaoController.java ExAutenticacaoController.autenticar authorization
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
N L N N N L N N 5.5 .0074 53.1 —
AFFECTED
Product Versions Fixed
siga 11.0.2.0 – —
TIMELINE
Sep 6 Reserved by VulDB
Sep 7 Published (CNA: VulDB)
Sep 8 EXPLOIT PUBLISHED — CVE-2026-86274 (projeto-siga siga). Public exploit reference added.
Description
A security vulnerability has been detected in projeto-siga siga up to 11.0.2.10/11.0.2.13/11.1.1. This affects the function ExAutenticacaoController.autenticar of the file sigaex/src/main/java/br/gov/jfrj/siga/vraptor/ExAutenticacaoController.java of the component Authentication Flow. Such manipulation of the argument cod/jwt leads to missing authorization. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. 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 8, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-86274 (projeto-siga siga). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| projeto-siga | siga | — | 11.0.2.0 | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-86274 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.