# I18next vulnerabilities Source: https://junglewise.ai/threats/vendors/i18next Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/vendors/i18next.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 11 vulnerabilities in I18next: 0 in the last 7 days and 1 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-63402, was published on 30 October 2026. 1 vulnerability in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 0 - Last 30 days: 1 - Last 90 days: 1 - All time: 11 (2 critical, 0 exploited in the wild) ## About I18next i18next is an internationalization framework for JavaScript and Node.js applications. ## Latest I18next vulnerabilities - [CVE-2026-63402: i18next deepExtend prototype pollution in addResourceBundle](https://junglewise.ai/threats/cve-2026-63402-i18next-is-an-internationalization-framework-for-javascript-prior) (medium, CVSS 5.9, published 30 Oct 2026) - [CVE-2026-48714: i18next-http-middleware Prototype Pollution in missingKeyHandler](https://junglewise.ai/threats/cve-2026-48714-i18next-http-middleware-prototype-pollution-in-missingkeyhandler) (critical, CVSS 9.1, published 15 Jun 2026) - [CVE-2026-48713: i18next-fs-backend prototype pollution in missing-key persistence](https://junglewise.ai/threats/cve-2026-48713-i18next-fs-backend-prototype-pollution-in-missing-key-persistence) (critical, CVSS 9.1, published 15 Jun 2026) - [CVE-2026-42353: i18next-http-middleware Path Traversal and SSRF in getResourcesHandler](https://junglewise.ai/threats/cve-2026-42353-i18next-http-middleware-path-traversal-and-ssrf-in) (high, CVSS 8.2, published 8 May 2026) - [CVE-2026-41693: i18next-fs-backend path traversal in locale loading](https://junglewise.ai/threats/cve-2026-41693-i18next-fs-backend-path-traversal-in-lng-and-ns-parameters) (high, CVSS 8.2, published 8 May 2026) - [CVE-2026-41690: i18next-http-middleware prototype pollution in getResourcesHandler and missingKeyHandler](https://junglewise.ai/threats/cve-2026-41690-i18next-http-middleware-prototype-pollution-and-path-traversal) (high, CVSS 8.6, published 8 May 2026) - [CVE-2026-41683: i18next-http-middleware CRLF injection in Content-Language header](https://junglewise.ai/threats/cve-2026-41683-i18next-http-middleware-http-response-splitting-and-dos-via) (high, CVSS 8.6, published 8 May 2026) - [CVE-2026-41692: i18nextify DOM XSS in translated href and src attributes](https://junglewise.ai/threats/cve-2026-41692-i18nextify-dom-xss-in-translated-href-and-src-attributes) (medium, CVSS 4.7, published 7 May 2026) - [CVE-2026-41691: i18next-http-backend URL injection and path traversal](https://junglewise.ai/threats/cve-2026-41691-i18next-http-backend-url-injection-and-path-traversal) (medium, CVSS 6.5, published 7 May 2026) - [CVE-2017-16008: i18next cross-site scripting in interpolation](https://junglewise.ai/threats/cve-2017-16008-i18next-cross-site-scripting-in-interpolation) (low, CVSS 3, published 9 Nov 2018) - [CVE-2017-16010: i18next cross-site scripting in interpolation](https://junglewise.ai/threats/cve-2017-16010-i18next-cross-site-scripting-in-interpolation) (low, CVSS 3, published 24 Jul 2018) ## Most severe I18next vulnerabilities - [CVE-2026-48714: i18next-http-middleware Prototype Pollution in missingKeyHandler](https://junglewise.ai/threats/cve-2026-48714-i18next-http-middleware-prototype-pollution-in-missingkeyhandler) (critical, CVSS 9.1, published 15 Jun 2026) - [CVE-2026-48713: i18next-fs-backend prototype pollution in missing-key persistence](https://junglewise.ai/threats/cve-2026-48713-i18next-fs-backend-prototype-pollution-in-missing-key-persistence) (critical, CVSS 9.1, published 15 Jun 2026) - [CVE-2026-41690: i18next-http-middleware prototype pollution in getResourcesHandler and missingKeyHandler](https://junglewise.ai/threats/cve-2026-41690-i18next-http-middleware-prototype-pollution-and-path-traversal) (high, CVSS 8.6, published 8 May 2026) - [CVE-2026-41683: i18next-http-middleware CRLF injection in Content-Language header](https://junglewise.ai/threats/cve-2026-41683-i18next-http-middleware-http-response-splitting-and-dos-via) (high, CVSS 8.6, published 8 May 2026) - [CVE-2026-42353: i18next-http-middleware Path Traversal and SSRF in getResourcesHandler](https://junglewise.ai/threats/cve-2026-42353-i18next-http-middleware-path-traversal-and-ssrf-in) (high, CVSS 8.2, published 8 May 2026) - [CVE-2026-41693: i18next-fs-backend path traversal in locale loading](https://junglewise.ai/threats/cve-2026-41693-i18next-fs-backend-path-traversal-in-lng-and-ns-parameters) (high, CVSS 8.2, published 8 May 2026) - [CVE-2026-41691: i18next-http-backend URL injection and path traversal](https://junglewise.ai/threats/cve-2026-41691-i18next-http-backend-url-injection-and-path-traversal) (medium, CVSS 6.5, published 7 May 2026) - [CVE-2026-63402: i18next deepExtend prototype pollution in addResourceBundle](https://junglewise.ai/threats/cve-2026-63402-i18next-is-an-internationalization-framework-for-javascript-prior) (medium, CVSS 5.9, published 30 Oct 2026) - [CVE-2026-41692: i18nextify DOM XSS in translated href and src attributes](https://junglewise.ai/threats/cve-2026-41692-i18nextify-dom-xss-in-translated-href-and-src-attributes) (medium, CVSS 4.7, published 7 May 2026) - [CVE-2017-16010: i18next cross-site scripting in interpolation](https://junglewise.ai/threats/cve-2017-16010-i18next-cross-site-scripting-in-interpolation) (low, CVSS 3, published 24 Jul 2018) ## Vulnerabilities per week 1 vulnerability in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 1 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "I18next vulnerabilities", https://junglewise.ai/threats/vendors/i18next, 9 November 2026.