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.
Published: 2026-02-27
Score: 8.2 High
EPSS: < 1% Very Low
KEV: No
Impact: Authentication/Authorization Bypass
Action: Immediate Patch
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-r4wm-x892-vjmx Nest has a Fastify URL Encoding Middleware Bypass
History

Tue, 14 Apr 2026 00:45:00 +0000

Type Values Removed Values Added
First Time appeared Nestjs
Nestjs nest
CPEs cpe:2.3:a:nestjs:nest:11.1.13:*:*:*:*:node.js:*:*
Vendors & Products Nestjs
Nestjs nest
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Tue, 03 Mar 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-551
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

threat_severity

Important


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'}


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 : Analyzed

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

Modified: 2026-04-14T00:30:36.907

Link: CVE-2026-2293

cve-icon Redhat

Severity : Important

Publid Date: 2026-02-27T16:15:11Z

Links: CVE-2026-2293 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-04-18T10:15:25Z

Weaknesses