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Description

A security vulnerability has been detected in CodeGenieApp serverless-express up to 4.17.1. Affected by this issue is some unknown functionality of the file examples/lambda-function-url/packages/api/models/TodoList.ts of the component API Endpoint. The manipulation of the argument userId leads to authorization bypass. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

PUBLISHED Reserved 2026-03-14 | Published 2026-03-15 | Updated 2026-03-16 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Authorization Bypass

Improper Authorization

Product status

4.17.0
affected

4.17.1
affected

Timeline

2026-03-14:Advisory disclosed
2026-03-14:VulDB entry created
2026-03-14:VulDB entry last update

Credits

Ana10gy (VulDB User) reporter

VulDB coordinator

References

vuldb.com/?id.351078 (VDB-351078 | CodeGenieApp serverless-express API Endpoint TodoList.ts authorization) vdb-entry technical-description

vuldb.com/?ctiid.351078 (VDB-351078 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.769769 (Submit #769769 | CodeGenieApp serverless-express <=4.17.1 Broken Object Level Authorization) third-party-advisory

vuldb.com/?submit.769771 (Submit #769771 | CodeGenieApp @codegenie/serverless-express <=4.17.1 Broken Object Level Authorization (Duplicate)) third-party-advisory

github.com/AnalogyC0de/public_exp/issues/20 exploit issue-tracking

cve.org (CVE-2026-4171)

nvd.nist.gov (CVE-2026-4171)

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