CVE-2026-2293

NestJS 11.1.13 - Lack of data validation allowing authentication/authorization bypass

Published Feb 27, 2026 CVSS 4.0 · 8.2 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

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
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'}

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

Type Values Removed Values Added
Metrics ssvc

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

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Fluid Attacks
Published
Updated
Jul 15, 2026, 1:18 AM
Reserved
Feb 10, 2026, 3:48 PM
Status
Modified
Published
Feb 27, 2026, 5:16 PM
Modified
Jul 15, 2026, 2:19 AM
Severity
Important
Public date
Feb 27, 2026, 4:15 PM