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Active filters (1):Package: pkg:npm/serverless-express

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CVE-2026-4171 is an authorization bypass vulnerability in CodeGenieApp's serverless-express versions up to 4.17.1. The flaw exists in the API Endpoint component, specifically in the handling of the userId argument within the TodoList.ts file. This vulnerability allows remote attackers to manipulate userId values to bypass authorization controls without authentication or user interaction. Although the vendor has not responded to the disclosure, no known exploits are currently observed in the wild. The CVSS 4.0 score rates this as a medium severity issue due to its remote exploitability and partial impact on confidentiality, integrity, and availability. Organizations using affected versions should prioritize code review and implement strict validation of userId parameters to mitigate risk.

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A weakness has been identified in CodeGenieApp serverless-express up to 4.17.1. This affects an unknown part of the file utils/dynamodb.ts of the component Users Endpoint. This manipulation of the argument filter causes injection. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

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