Is i18next-http-middleware affected by CVE-2026-41683?

npm i18next-http-middleware is affected in <3.9.3.

Is CVE-2026-41683 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

high

CVE-2026-41683

Q: Is CVE-2026-41683 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

npm · i18next-http-middleware

Summary

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

Severity: high
EPSS: 0.3% (p24)
Also known as: GHSA-c3h8-g69v-pjrg
Published: 2026-04-22

References

https://github.com/i18next/i18next-http-middleware/security/advisories/GHSA-c3h8-g69v-pjrg
https://nvd.nist.gov/vuln/detail/CVE-2026-41683
https://github.com/i18next/i18next-http-middleware/commit/65301c194593d46a84623b64e5fde2f51d3550f6

Related advisories

CVE-2026-42353 — high · npm/i18next-http-middleware
CVE-2026-41690 — high · npm/i18next-http-middleware

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.