CVE-2026-2293
CRITICALNestJS platform-fastify < 11.1.14 - Authentication Bypass via Fastify Path Normalization
Title source: llmDescription
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.
References (3)
Core 3
Core References
Various Sources third-party-advisory
https://fluidattacks.com/advisories/neton
Various Sources product
https://github.com/nestjs/nest/
Release Notes patch
https://github.com/nestjs/nest/releases/tag/v11.1.14
Scores
CVSS v3
9.8
EPSS
0.0043
EPSS Percentile
62.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-863
Status
published
Products (2)
nestjs/nest
11.1.13
nestjs/platform-fastify
0 - 11.1.14npm
Published
Feb 27, 2026
Tracked Since
Feb 28, 2026