node-i18next-http-backend — security advisory
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.
- Products
- node-i18next-http-backend
- Affected versions
- 1.0.21+dfsg-1, 1.3.1+dfsg-2, 1.3.1+dfsg-3, 1.3.1+dfsg-4, 1.3.2+dfsg-1, 2.1.1-1, 2.4.1+ds-2, 2.4.1+ds-2build2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-105800
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:53 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-105800
node-i18next-http-backend
Fixed versions: Not specified
node-i18next-http-backend
Fixed versions: Not specified
node-i18next-http-backend
Fixed versions: Not specified
node-i18next-http-backend
Fixed versions: Not specified
Complete source record
{
"id": "5b5f02c39debb8899b2bb60e2de5e383d011d004a64151827605a3fa39344db9",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-105800",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-105800",
"summary": "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.",
"evidence": "osv:UBUNTU-CVE-2026-105800",
"products": [
{
"name": {
"value": "node-i18next-http-backend",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.0.21+dfsg-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.3.1+dfsg-2",
"evidence": "/affected/0/versions"
},
{
"value": "1.3.1+dfsg-3",
"evidence": "/affected/0/versions"
},
{
"value": "1.3.1+dfsg-4",
"evidence": "/affected/0/versions"
},
{
"value": "1.3.2+dfsg-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
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"affected_versions": [
{
"value": "2.1.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "2.4.1+ds-2",
"evidence": "/affected/1/versions"
},
{
"value": "2.4.1+ds-2build2",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "node-i18next-http-backend",
"evidence": "/affected/2/package/name"
},
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"fixed_versions": [],
"affected_versions": [
{
"value": "2.4.1+ds-2build2",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
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"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.4.1+ds-2build2",
"evidence": "/affected/3/versions"
}
]
}
],
"severity": "low",
"structured": {
"id": "UBUNTU-CVE-2026-105800",
"aliases": [
"UBUNTU-CVE-2026-105800"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "node-i18next-http-backend",
"purl": "pkg:deb/ubuntu/node-i18next-http-backend?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.0.21+dfsg-1",
"1.3.1+dfsg-2",
"1.3.1+dfsg-3",
"1.3.1+dfsg-4",
"1.3.2+dfsg-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-105800.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libjs-i18next-http-backend",
"binary_version": "1.3.2+dfsg-1"
},
{
"binary_name": "node-i18next-http-backend",
"binary_version": "1.3.2+dfsg-1"
}
]
}
},
{
"ranges": [
{
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"events": [
{
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}
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}
],
"package": {
"name": "node-i18next-http-backend",
"purl": "pkg:deb/ubuntu/node-i18next-http-backend?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"2.1.1-1",
"2.4.1+ds-2",
"2.4.1+ds-2build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-105800.json"
},
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},
{
"binary_name": "node-i18next-http-backend",
"binary_version": "2.4.1+ds-2build2"
}
]
}
},
{
"ranges": [
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],
"package": {
"name": "node-i18next-http-backend",
"purl": "pkg:deb/ubuntu/node-i18next-http-backend?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"2.4.1+ds-2build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-105800.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libjs-i18next-http-backend",
"binary_version": "2.4.1+ds-2build2"
},
{
"binary_name": "node-i18next-http-backend",
"binary_version": "2.4.1+ds-2build2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "node-i18next-http-backend",
"purl": "pkg:deb/ubuntu/node-i18next-http-backend?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"2.4.1+ds-2build2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-105800.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libjs-i18next-http-backend",
"binary_version": "2.4.1+ds-2build2"
},
{
"binary_name": "node-i18next-http-backend",
"binary_version": "2.4.1+ds-2build2"
}
]
}
}
],
"modified": "2026-10-17T12:59:46.568130335Z",
"provider": "osv",
"upstream": [
"CVE-2026-105800"
],
"references": [
"https://ubuntu.com/security/CVE-2026-105800",
"https://www.cve.org/CVERecord?id=CVE-2026-105800",
"https://github.com/i18next/i18next-http-backend/security/advisories/GHSA-xvq9-wjp8-hwqf"
]
},
"related_cves": [
{
"value": "CVE-2026-105800",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 359762,
"published_at": "2026-10-06T15:17:00+00:00"
}