Webpack 5 before 5.76.0 does not avoid cross-realm object access. ImportParserPlugin.js mishandles the magic comment feature. An attacker who controls a property of an untrusted object can obtain access to the real global object.
webpack buildHttp: allowedUris allow-list bypass via URL userinfo (@) leading to build-time SSRF behavior
Published 2026-02-05 · Analyzed
3.7EPSS 0.002
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