Vulnerability · Published Feb 27, 2026 · Assigned by Fluid Attacks

CVE-2026-2293NestJS 11.1.13 - Lack of data validation allowing authentication/authorization bypass

High 7.5

In plain English

A high-severity incorrect authorization in nest.js from nest.js. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.8%top 44.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	@nestjs/platform-fastify	11.1.14	GHSA-r4wm-x892-vjmx

Affected products (as reported)

Vendor	Product	Versions
nest.js	nest.js	11.1.13

Weakness: CWE-863, CWE-551 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

https://fluidattacks.com/advisories/neton third-party-advisory
https://github.com/nestjs/nest/ product
https://github.com/nestjs/nest/releases/tag/v11.1.14 patch
https://access.redhat.com/security/cve/CVE-2026-2293 vdb-entry, x_refsource_REDHAT
RHBZ#2443367 issue-tracking, x_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2293.json x_sadp-csaf-vex