CVE-2026-118258
LOW
INFO
Priority: 0.01
BB Relevance:
57/100
Published: 2026-10-28
Modified: 2026-10-28
First seen: 2026-10-29
Status: active
Attack Surface
Network
No Auth
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
None
UI:
None
S:
Unchanged
C:
Low
I:
None
A:
None
Description
i18next-http-backend is a backend layer for i18next that loads translation resources in Node.js, browsers, and Deno. Prior to 4.0.4, interpolateUrl inserts unencoded language and namespace values into loadPath or addPath templates without rejecting ampersand (&), equals (=), or semicolon (;) query separators. When a template places lng or ns in the query string and an attacker controls that value, the attacker can add or override parameters on browser or server-side translation requests, potentially exposing other namespaces or tenants or changing backend behavior through the application's network position and credentials. This vulnerability is the result of an incomplete fix for CVE-2026-41691. This issue is fixed in version 4.0.4.
Weakness Classification (1)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| i18next | i18next-http-backend | < 4.0.4 |
| i18next | i18next-http-backend | < 4.0.4 |