CVE-2026-42353
CVE-2026-42353 · Path traversal / SSRF in i18next-http-middleware via user-controlled language and namespace parameters
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 i18next.services.backendConnector.load(languages, namespaces, …) without any sanitization. Depending on which backend is configured, the unvalidated path segments enable either path traversal or SSRF. This issue has been patched in version 3.9.3.
CVSS 8.2 · High · EPSS 0.4% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
i18next-http-middleware
- Versions
- < 3.9.3: Affected
No fix published
i18next-http-middleware npm
- Affected ranges
- SEMVER: < 3.9.3
Update to 3.9.3