CVE-2026-115730
i18next-http-backend 4.0.2 Protocol-Relative URL Injection via Namespace in interpolateUrl
- State
- Published
- Severity
- 2.3 Low
- Published
- Oct 23, 2026
- Updated
- Oct 29, 2026
- Reserved
- Oct 23, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.3 Low | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 3.1 Low | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N | VulnCheck |
Weaknesses
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Affected Products
| Product | Versions |
|---|---|
i18next-http-backendi18next |
|
References
- GitHub Security Advisory (GHSA-9jhj-wvmw-cfx5)vendor-advisory
- https://github.com/i18next/i18next-http-backend/commit/042c3d4e4e9d73b2ae3aa76b22cb45d48f1e35b7patch
- GitHub Security Advisory (GHSA-xvq9-wjp8-hwqf)relatedvendor-advisory
- VulnCheck Advisory: i18next-http-backend 4.0.2 Protocol-Relative URL Injection via Namespace in interpolateUrlthird-party-advisory
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