{"id":"CVE-2026-105800","revision":"bdf04555593c4f2aaff020c3eec3003d","records":[{"revision":"bdf04555593c4f2aaff020c3eec3003d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-105800","aliases":[],"title":"i18next-http-backend incomplete URL validation permits SSRF","description":"i18next-http-backend is a backend layer for i18next that loads translation resources in Node.js, browsers, and Deno. Prior to 4.0.2, attacker-controlled language or namespace values interpolated into a custom loadPath or addPath that begins directly with {{lng}} or {{ns}} can make colon-based input become an absolute URL or, in browsers, make a double-slash namespace become a protocol-relative URL. The resulting request can leave the intended origin and cause URL injection or server-side request forgery. The default /locales/{{lng}}/{{ns}}.json template and templates with a leading path or origin are not affected because the placeholder does not occupy the URL's structural beginning. This issue is fixed in version 4.0.2.","state":0,"publishedAt":"2026-10-06T14:48:05.267+00:00","modifiedAt":"2026-10-06T17:19:14.493+00:00","affected":[{"ecosystem":"Vendor product","name":"i18next-http-backend","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"i18next\",\n                    \"product\": \"i18next-http-backend\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 4.0.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","score":3.7,"severity":"LOW"}],"references":["https://github.com/i18next/i18next-http-backend/security/advisories/GHSA-xvq9-wjp8-hwqf","https://github.com/i18next/i18next-http-backend/commit/07e028862b25d0b9251bf3cafb92be2d35285f85","https://github.com/i18next/i18next-http-backend/releases/tag/v4.0.2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-105800","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-105800","identifiers":["CVE-2026-105800"]},"retained":false,"historicalAffected":[]}],"coverage":[]}