A NestJS application using @nestjs/platform-fastify can allow bypass of authentication/authorization middleware when Fastify path-normalization options are enabled.



This issue affects nest.Js: 11.1.13.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
nest.js nest.js unaffected
Version Status Constraints
11.1.13 affected —

No data.

No data.

No data.

Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://fluidattacks.com/advisories/neton cve-icon cve-icon
https://github.com/nestjs/nest/ cve-icon cve-icon
https://github.com/nestjs/nest/releases/tag/v11.1.14 cve-icon cve-icon
History

Fri, 27 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 27 Feb 2026 16:30:00 +0000

Type Values Removed Values Added
Description A NestJS application using @nestjs/platform-fastify can allow bypass of authentication/authorization middleware when Fastify path-normalization options are enabled. This issue affects nest.Js: 11.1.13.
Title NestJS 11.1.13 - Lack of data validation allowing authentication/authorization bypass
First Time appeared Nest.js
Nest.js nest.js
Weaknesses CWE-863
CPEs cpe:2.3:a:nest.js:nest.js:11.1.13:*:ios:*:*:*:*:*
cpe:2.3:a:nest.js:nest.js:11.1.13:*:macos:*:*:*:*:*
cpe:2.3:a:nest.js:nest.js:11.1.13:*:windows:*:*:*:*:*
Vendors & Products Nest.js
Nest.js nest.js
References
Metrics cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Fluid Attacks

Published:

Updated: 2026-02-27T17:07:59.779Z

Reserved: 2026-02-10T15:48:58.721Z

Link: CVE-2026-2293

cve-icon Vulnrichment

Updated: 2026-02-27T17:07:48.467Z

cve-icon NVD

Status : Received

Published: 2026-02-27T17:16:33.357

Modified: 2026-02-27T17:16:33.357

Link: CVE-2026-2293

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses