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CVE PROGRAM SOURCE RECORD2.1 Low

CVE-2026-118256

Vue I18n: `escapeParameter` does not escape named values when the same call also passes a list

Description

Vue I18n is the internationalization plugin for Vue.js. From 9.0.0-beta.5 until 11.4.14 and 12.0.0-alpha.5, enabling escapeParameter, called escapeParameterHtml in the Legacy API, does not escape named interpolation values when the same translation call supplies both list and named values because escapeParams() processes only the list branch. Applications that render translations as HTML and pass untrusted named values with a list can insert attacker-controlled markup, including phishing links, forms, and layout changes, and can permit script execution when combined with the srcdoc sanitizer bypass or on releases without the sanitizer. This issue is fixed in versions 11.4.14 and 12.0.0-alpha.5.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

intlify vue-i18n

  • >= 9.0.0-beta.5, < 11.4.14affected
  • >= 12.0.0-alpha.1, < 12.0.0-alpha.5affected

References