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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-86274
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-07 06:17:23 UTC
Updated2026-09-07 06:17:23 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 5.5 MEDIUM from [email protected]

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-862 | CWE-863 | CWE-862 Missing Authorization | CWE-863 Incorrect Authorization

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.5MEDIUMCVSS: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/C...
4.0CNADECLARED6.9MEDIUMCVSS: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
3.1[email protected]Primary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
3.0CNADECLARED5.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
2.0[email protected]Secondary5AV:N/AC:L/Au:N/C:P/I:N/A:N
2.0CNADECLARED5AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Projeto-siga Siga affected 11.0.2.0 Not specified
CNA Projeto-siga Siga affected 11.0.2.1 Not specified
CNA Projeto-siga Siga affected 11.0.2.2 Not specified
CNA Projeto-siga Siga affected 11.0.2.3 Not specified
CNA Projeto-siga Siga affected 11.0.2.4 Not specified
CNA Projeto-siga Siga affected 11.0.2.5 Not specified
CNA Projeto-siga Siga affected 11.0.2.6 Not specified
CNA Projeto-siga Siga affected 11.0.2.7 Not specified
CNA Projeto-siga Siga affected 11.0.2.8 Not specified
CNA Projeto-siga Siga affected 11.0.2.9 Not specified
CNA Projeto-siga Siga affected 11.0.2.10 Not specified
CNA Projeto-siga Siga affected 11.0.2.11 Not specified
CNA Projeto-siga Siga affected 11.0.2.12 Not specified
CNA Projeto-siga Siga affected 11.0.2.13 Not specified
CNA Projeto-siga Siga affected 11.1.0 Not specified
CNA Projeto-siga Siga affected 11.1.1 Not specified

References

ReferenceSourceLinkTags
vuldb.com/vuln/399435/cti [email protected] vuldb.com
github.com/projeto-siga/siga [email protected] github.com
vuldb.com/submit/904871 [email protected] vuldb.com
vuldb.com/vuln/399435 [email protected] vuldb.com
github.com/projeto-siga/siga/issues/2493 [email protected] github.com
vuldb.com/cve/CVE-2026-86274 [email protected] vuldb.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: volksec (VulDB User) (en)

CNA: VulDB CNA Team (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-06T00:00:00.000ZAdvisory disclosed
CNA2026-09-06T02:00:00.000ZVulDB entry created
CNA2026-09-06T15:21:25.000ZVulDB entry last update

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