Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
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 passing them through utils.escape(), which is an HTML-entity encoder that does not strip carriage return, line feed, or other control characters. When the application used an older i18next (< 19.5.0) that still exercised the backward-compatibility fallback at LanguageDetector.js:100 or otherwise produced a raw detected value, CRLF sequences in the attacker-controlled lng parameter reached res.setHeader('Content-Language', ...) verbatim. This issue has been patched in version 3.9.3.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
CVE-2026-41683 HTTP Response Header Injection in i18next-http-middleware Prior to Version 3.9.3 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-41683
Post summary
The text announces CVE-2026-41683, detailing an HTTP Response Header Injection affecting i18next-http-middleware versions before 3.9.3, and links to a vulnerability page, but offers no PoC, exploit, patch, or active exploitation information.
CVE-2026-41683 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-middlew… https://www.cve.org/CVERecord?id=CVE-2026-41683
Post summary
The text is a brief disclosure of CVE-2026-41683 affecting i18next-http-middleware, without additional technical detail, PoC, or patch information.