CVE-2026-115730

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.

CVSS v3 3.1 LOW

3.1^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.6 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/i18next/i18next-http-backend/commit/042c3d4e4e9d73b2ae3aa76b22cb45d48f1e35b7
https://github.com/i18next/i18next-http-backend/security/advisories/GHSA-9jhj-wvmw-cfx5
https://github.com/i18next/i18next-http-backend/security/advisories/GHSA-xvq9-wjp8-hwqf
https://www.vulncheck.com/advisories/i18next-http-backend-4.0.2-protocol-relative-url-injection-via-namespace-in-interpolateurl
https://github.com/i18next/i18next-http-backend/security/advisories/GHSA-9jhj-wvmw-cfx5

Configurations

No configuration.

History

29 Oct 2026, 14:17

Type	Values Removed	Values Added
References	~~() https://github.com/i18next/i18next-http-backend/security/advisories/GHSA-9jhj-wvmw-cfx5 -~~	() https://github.com/i18next/i18next-http-backend/security/advisories/GHSA-9jhj-wvmw-cfx5 -

23 Oct 2026, 13:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-23 13:17

Updated : 2026-10-29 14:17

NVD link : CVE-2026-115730

Mitre link : CVE-2026-115730

CVE.ORG link : CVE-2026-115730

JSON object : View

Products Affected

No product.

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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