{"schema":"threatline.record/2","record":{"id":"CVE-2026-115730","aliases":["CVE-2026-105800","GHSA-9jhj-wvmw-cfx5","GHSA-xvq9-wjp8-hwqf"],"summary":"i18next-http-backend 4.0.2 Protocol-Relative URL Injection via Namespace in interpolateUrl","details":"i18next-http-backend 4.0.2 contains an incomplete fix in interpolateUrl() that allows attackers to redirect translation requests by supplying an ns value starting with a slash. Attackers controlling the namespace value can form a protocol-relative URL in loadPath or addPath templates to load attacker-hosted translations, enabling UI content injection and cross-site scripting.","categories":["Libraries & packages"],"product":"i18next-http-backend","vendor":"i18next","ecosystem":"npm","affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115730","source_modified_at":"2026-10-23T12:55:09.891Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"i18next-http-backend","vendor":"i18next","versions":[{"lessThan":"4.0.3","status":"affected","version":"4.0.2","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-xvq9-wjp8-hwqf","source_modified_at":"2026-10-06T15:46:48.488576736Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"i18next-http-backend","purl":"pkg:npm/i18next-http-backend"},"ranges":[{"events":[{"introduced":"0"},{"fixed":"4.0.2"}],"type":"SEMVER"}],"versions":[]}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115730","source_modified_at":"2026-10-23T12:55:09.891Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"i18next-http-backend","ecosystem":null},"version":"4.0.3","basis":"first unaffected version stated in the CVE record"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-xvq9-wjp8-hwqf","source_modified_at":"2026-10-06T15:46:48.488576736Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"npm","name":"i18next-http-backend","purl":"pkg:npm/i18next-http-backend"},"version":"4.0.2"}],"cvss":2.3,"severity":"Low","kev":{"listed":false},"epss":{"probability":0.00356,"percentile":0.28189,"score_date":"2026-10-24"},"published_at":"2026-10-23T12:55:09.891Z","modified_at":"2026-10-23T12:55:09.891Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-115730","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T12:55:09.891Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-xvq9-wjp8-hwqf","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-06T15:46:48.488576736Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-115730","fetched_at":"2026-10-24T18:03:20.872036Z","source_modified_at":"2026-10-24"}],"sources":["CVE List","OSV","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/i18next/i18next-http-backend/security/advisories/GHSA-9jhj-wvmw-cfx5","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://github.com/i18next/i18next-http-backend/commit/042c3d4e4e9d73b2ae3aa76b22cb45d48f1e35b7","tags":["patch"]},{"source":"CVE List","url":"https://github.com/i18next/i18next-http-backend/security/advisories/GHSA-xvq9-wjp8-hwqf","tags":["related","vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/i18next-http-backend-4.0.2-protocol-relative-url-injection-via-namespace-in-interpolateurl","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"ecosystem","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-23T12:55:09.891Z","content_hash":"2c44aa87c125c939956df2e294e7a25170ebe2c75f097df8603f783869b56bc6"}}