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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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.
    (CVE-2026-118258)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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.
    (CVE-2026-118258)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
477801	SCA: security update for i18next-http-backend (GHSA-3cmx-xjww-583x)	Tenable Cloud Security	SCA Checks	Local	low
477801	SCA: security update for i18next-http-backend (GHSA-3cmx-xjww-583x)	Tenable Self-Hosted Container Security	SCA Checks	Local	low
373871	Linux Distros Unpatched Vulnerability : CVE-2026-118258	Nessus	Misc.	Local	low

Detections

Analytics

CVE-2026-118258

low

Tenable Plugins

low

low

low