CVE-2026-6402
CVE-2026-6402 · webpack-dev-server vulnerable to cross-origin source code exposure on non-HTTPS origins
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
webpack-dev-server versions up to and including 5.2.3 are vulnerable to cross-origin source code exposure when serving over a non-potentially trustworthy origin such as plain HTTP. The previous fix relied on the Sec-Fetch-Mode and Sec-Fetch-Site request headers, which browsers omit for non-trustworthy origins, allowing a malicious site to load the bundled source as a script and read it across origins. Impact: an attacker controlling a website visited by a developer running webpack-dev-server can recover the application source code when the dev server runs over HTTP at a guessable host and port. Chromium based browsers from Chrome 142 onward are not affected due to local network access restrictions. Upgrade to webpack-dev-server 5.2.4 or later, which sets Cross-Origin-Resource-Policy: same-origin on responses.
CVSS 5.3 · Media · EPSS 0,3% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: node
Productos y versiones afectados
webpack-dev-server
- Versiones
- ≥ 0, < 5.2.4: Afectada (semver)
- 5.2.4: No afectada (semver)
Actualiza a 5.2.4
webpack-dev-server npm
- Intervalos de versiones afectados
- SEMVER: < 5.2.4
Actualiza a 5.2.4