CVE-2026-115730
Published:October 23, 2026
Updated:October 26, 2026
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.
Affected Packages
i18next-http-backend (CDN_JS):
Affected version(s) >=4.0.0 <4.0.3Fix Suggestion:
Update to version 4.0.3https://github.com/i18next/i18next-http-backend.git (GITHUB):
Affected version(s) >=v4.0.0 <v4.0.3Fix Suggestion:
Update to version v4.0.3i18next-http-backend (NPM):
Affected version(s) >=4.0.0 <4.0.3Fix Suggestion:
Update to version 4.0.3Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
2.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
EPSS
Base Score:
0.22