projeto-siga up to 11.0.2.10/11.0.2.13/11.1.1 Authentication Flow ExAutenticacaoController.java ExAutenticacaoController.autenticar cod/jwt authorization

Summaryinfo

A vulnerability, which was classified as problematic, has been found in projeto-siga siga up to 11.0.2.10/11.0.2.13/11.1.1. This vulnerability affects the function ExAutenticacaoController.autenticar of the file sigaex/src/main/java/br/gov/jfrj/siga/vraptor/ExAutenticacaoController.java of the component Authentication Flow. Performing a manipulation of the argument cod/jwt results in authorization. This vulnerability is known as CVE-2026-86274. Remote exploitation of the attack is possible. Furthermore, an exploit is available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability was found in projeto-siga siga up to 11.0.2.10/11.0.2.13/11.1.1. It has been classified as problematic. 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. The manipulation of the argument cod/jwt with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-86274. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• projeto-siga

Name

• siga

Version

• 11.0.2.0
• 11.0.2.1
• 11.0.2.2
• 11.0.2.3
• 11.0.2.4
• 11.0.2.5
• 11.0.2.6
• 11.0.2.7
• 11.0.2.8
• 11.0.2.9
• 11.0.2.10
• 11.0.2.11
• 11.0.2.12
• 11.0.2.13
• 11.1.0
• 11.1.1

Website

• Product: https://github.com/projeto-siga/siga/

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Entryinfo

Submitinfo

Accepted

• Submit #904871: projeto-siga siga 11.0.2.10 through 11.1.1 authorization bypass (by volksec)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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