i18next-fs-backend vulnerable to prototype pollution via crafted missing-key string
High-risk advisory
CVE-2026-48713
Summary
i18next-fs-backend vulnerable to prototype pollution via crafted missing-key string
Why it matters
GitHub has published a reviewed security advisory for i18next-fs-backend. Prioritize it with other application dependency updates, especially because EPSS places it in the 33% percentile.
Operator check
Check whether i18next-fs-backend is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 0.4%; percentile: 33%.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.