CVE-2026-115730
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 2.3 LOW (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-74
- Record status
- Awaiting Analysis
Attack profile CVSS 4.0 · 2.3
- Attack vector
- Network
- Complexity
- Low
- Attack requirements
- Present
- Privileges needed
- None
- User interaction
- Passive
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Raw vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-115730.md and follow it. Check whether this project is affected by CVE-2026-115730. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- 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://github.com/i18next/i18next-http-backend/security/advisories/GHSA-9jhj-wvmw-cfx5
References
- 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