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CVE-2026-105800

3.7 · LOW

i18next-http-backend is a backend layer for i18next that loads translation resources in Node.js, browsers, and Deno.

Published Oct 6, 2026CWE-74EPSS 0.29%

Overview

CVE-2026-105800 is a low-severity vulnerability. It was published on October 6, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

i18next-http-backend is a backend layer for i18next that loads translation resources in Node.js, browsers, and Deno. Prior to 4.0.2, attacker-controlled language or namespace values interpolated into a custom loadPath or addPath that begins directly with {{lng}} or {{ns}} can make colon-based input become an absolute URL or, in browsers, make a double-slash namespace become a protocol-relative URL. The resulting request can leave the intended origin and cause URL injection or server-side request forgery. The default /locales/{{lng}}/{{ns}}.json template and templates with a leading path or origin are not affected because the placeholder does not occupy the URL's structural beginning. This issue is fixed in version 4.0.2.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/i18next/i18next-http-backend/commit/07e028862b25d0b9251bf3cafb92be2d35285f85GitHubgithub.com/i18next/i18next-http-backend/releases/tag/v4.0.2GitHubgithub.com/i18next/i18next-http-backend/security/advisories/GHSA-xvq9-wjp8-hwqfGitHubgithub.com/i18next/i18next-http-backend/security/advisories/GHSA-xvq9-wjp8-hwqf

How CyberStrike helps

Frequently asked questions

What is CVE-2026-105800?

CVE-2026-105800 is a low-severity vulnerability. It was published on October 6, 2026 and has a CVSS 3.1 base score of 3.7 (LOW).

How severe is CVE-2026-105800?

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-105800?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-105800?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-105800 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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