CVE-2026-86274

projeto-siga Authentication Flow ExAutenticacaoController.java ExAutenticacaoController.autenticar authorization

MEDIUM
5.3
CVSS Score
Published: September 7, 2026 at 05:15 AM UTC
Updated: September 8, 2026 at 05:18 PM UTC
1 product affected across 1 vendorSIGA

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.7%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/399435
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/399435/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-86274
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/904871
ExploitIssue Tracking
Source: cverecord
https://github.com/projeto-siga/siga/issues/2493

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-862CWE-863

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