{"id":75060,"date":"2025-12-29T19:31:22","date_gmt":"2025-12-29T16:01:22","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2025-69211-nest-has-a-fastify-url-encoding-middleware-bypass-toctou\/"},"modified":"2025-12-29T19:31:22","modified_gmt":"2025-12-29T16:01:22","slug":"cve-2025-69211-nest-has-a-fastify-url-encoding-middleware-bypass-toctou","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2025-69211-nest-has-a-fastify-url-encoding-middleware-bypass-toctou\/","title":{"rendered":"CVE-2025-69211 &#8211; Nest has a Fastify URL Encoding Middleware Bypass (TOCTOU)"},"content":{"rendered":"<p>CVE ID : CVE-2025-69211<\/p>\n<p>Published :  Dec. 29, 2025, 4:01 p.m. | 22\u00a0minutes ago<\/p>\n<p>Description : 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 `NestMiddleware` (via `MiddlewareConsumer`) for security checks (authentication, authorization, etc.), or through `app.use()`; and applies middleware to specific routes using string paths or controllers (e.g., `.forRoutes(&#8216;admin&#8217;)`). Exploitation can result in unauthenticated users accessing protected routes, restricted administrative endpoints becoming accessible to lower-privileged users, and\/or middleware performing sanitization or validation being skipped. This issue is patched in `@nestjs\/platform-fastify@11.1.11`.<\/p>\n<p>Severity: 0.0 | NA<\/p>\n<p>Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2025-69211 Published : Dec. 29, 2025, 4:01 p.m. | 22\u00a0minutes ago Description : 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 `NestMiddleware` (via `MiddlewareConsumer`) for security checks (authentication, &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-75060","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/75060","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=75060"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/75060\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=75060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=75060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=75060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}