Vulnerability in Nestjs Nest
CVE-2025-69211
Nest is a framework for building scalable Node.js server-side applications. Versions prior to 11.1.11 have a Fastify URL encoding middleware bypass. A NestJS application is vulnerable if it uses `@nestjs/platform-fastify`; relies on `NestM…
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
EPSS: 0.004 (27.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
Affected products
- Nestjs Nest — versions < 11.1.11
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-69211?
- CVE-2025-69211 is a high-severity vulnerability in Nestjs Nest, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.4/10. Published 2025-12-29.
- How severe is CVE-2025-69211?
- High severity. CVSS v3 base score is 7.4 out of 10.