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Product · i18next

i18next-http-middleware

4 known vulnerabilities.

i18next-http-middleware at a glance

Last 12 months
4
Critical · all time
1
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
0 3 5 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 0 vulnerabilities Mar April 2026: 0 vulnerabilities May 2026: 3 vulnerabilities June 2026: 1 vulnerability, 1 critical Jun July 2026: 0 vulnerabilities August 2026: 0 vulnerabilities September 2026: 0 vulnerabilities Sep October 2026: 0 vulnerabilities November 2026: 0 vulnerabilities
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All Critical High Medium Low Exploited only Public exploit

4 results · Feed

  • Critical 9.1
    CVE-2026-48714

    i18next-http-middleware missingKeyHandler does not reject keys whose segments contain prototype-polluting names

    i18next-http-middleware is a middleware to be used with Node.js web frameworks like express or Fastify and also for Deno. In versions prior to 3.9.7, the missingKeyHandler blocked the literal request-body keys __proto__, constructor, and prototype (added in 3…

    i18next i18next-http-middleware i18next-http-middleware npm
  • High 8.2
    CVE-2026-42353

    Path traversal / SSRF in i18next-http-middleware via user-controlled language and namespace parameters

    i18next-http-middleware is a middleware to be used with Node.js web frameworks like express or Fastify and also for Deno. Prior to version 3.9.3, i18next-http-middleware passes the user-controlled lng and ns values from getResourcesHandler directly into i18ne…

    i18next i18next-http-middleware i18next-http-middleware npm
  • High 8.6
    CVE-2026-41683

    HTTP response splitting and DoS in i18next-http-middleware via unsanitised Content-Language header

    i18next-http-middleware is a middleware to be used with Node.js web frameworks like express or Fastify and also for Deno. Prior to version 3.9.3, i18next-http-middleware wrote user-controlled language values into the Content-Language response header after pas…

    i18next i18next-http-middleware i18next-http-middleware npm
  • High 8.6
    CVE-2026-41690

    Prototype pollution and path traversal in i18next-http-middleware via user-controlled language and namespace parameters

    18next-http-middleware is a middleware to be used with Node.js web frameworks like express or Fastify and also for Deno. Versions prior to 3.9.3 allow an unauthenticated HTTP client to pollute Object.prototype in the Node.js process hosting the middleware, vi…

    i18next i18next-http-middleware i18next-http-middleware npm