What’s Vulnerable › Vulnerabilities

CVE-2026-86274: projeto-siga Authentication Flow ExAutenticacaoController.java ExAutenticacaoController.autenticar authorization

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-07 · updated 2026-09-08
• Weakness: CWE-862

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 products

• projeto-siga siga: 11.0.2.0, 11.0.2.1, 11.0.2.2, 11.0.2.3, 11.0.2.4, 11.0.2.5 (+10)

References

• https://github.com/projeto-siga/siga/
• https://github.com/projeto-siga/siga/issues/2493
• https://vuldb.com/cve/CVE-2026-86274
• https://vuldb.com/submit/904871
• https://vuldb.com/vuln/399435
• https://vuldb.com/vuln/399435/cti
• https://vuldb.com/submit/904871

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