CVE-2025-27597 Information

Description

Vue I18n is the internationalization plugin for Vue.js. @intlify/message-resolver and @intlify/vue-i18n-core are vulnerable to Prototype Pollution through the entry function: handleFlatJson. An attacker can supply a payload with Object.prototype setter to introduce or modify properties within the global prototype chain causing denial of service (DoS) a the minimum consequence. Moreover the consequences of this vulnerability can escalate to other injection-based attacks depending on how the library integrates within the application. For instance if the polluted property propagates to sensitive Node.js APIs (e.g. exec eval) it could enable an attacker to execute arbitrary commands within the application’s context.

Reference

https://github.com/intlify/vue-i18n/commit/4bb6eacda7fc2cde5687549afa0efb27ca40862a https://github.com/intlify/vue-i18n/security/advisories/GHSA-p2ph-7g93-hw3m https://github.com/intlify/vue-i18n/security/advisories/GHSA-p2ph-7g93-hw3m