🛡️ GHSA-7q64-3rg2-h9pf — platform-fastify (CVE-2026-2293)

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-863 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Duplicate Advisory: Nest has a Fastify URL Encoding Middleware Bypass

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-r4wm-x892-vjmx. This link is maintained to preserve external references.

Original 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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability none.

Weakness class

GHSA-7q64-3rg2-h9pf is classified as CWE-863: Incorrect Authorization. An authorisation check runs but reaches the wrong conclusion, permitting actions it should refuse.

Affected software

GHSA-7q64-3rg2-h9pf is recorded against 1 package.

  • @nestjs/platform-fastify

Timeline and source

Published on 27 February 2026 and last revised on 4 March 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
fluidattacks.com (Web)
github.com (Web)
github.com (Web)

Details

Severity HIGH
CVSS Score 8.0
CVSS 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE CWE-863
Public Exploit ✅ No
Source OSV
Published 2026-02-27
Updated 2026-08-12
Modified 2026-03-04
Fix URL N/A

Affected Packages

Software From version Fixed in
@nestjs/platform-fastify — —

Similar Threats

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