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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Projeto-siga
  • Siga

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References
Link Providers
https://github.com/projeto-siga/siga/ cve-icon cve-icon
https://github.com/projeto-siga/siga/issues/2493 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-86274 cve-icon cve-icon
https://vuldb.com/submit/904871 cve-icon cve-icon cve-icon
https://vuldb.com/vuln/399435 cve-icon cve-icon
https://vuldb.com/vuln/399435/cti cve-icon cve-icon
History

Tue, 08 Sep 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 07 Sep 2026 05:30:00 +0000

Type Values Removed Values 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.
Title projeto-siga Authentication Flow ExAutenticacaoController.java ExAutenticacaoController.autenticar authorization
First Time appeared Projeto-siga
Projeto-siga siga
Weaknesses CWE-862
CWE-863
CPEs cpe:2.3:a:projeto-siga:siga:*:*:*:*:*:*:*:*
Vendors & Products Projeto-siga
Projeto-siga siga
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-09-07T05:15:11.895Z

Updated: 2026-09-08T16:02:56.051Z

Reserved: 2026-09-06T13:16:19.380Z

Link: CVE-2026-86274

cve-icon Vulnrichment

Updated: 2026-09-08T16:02:31.316Z

cve-icon NVD

Status : Deferred

Published: 2026-09-07T06:17:23.820

Modified: 2026-09-08T17:18:39.463

Link: CVE-2026-86274

cve-icon Redhat

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