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webpack-dev-server: webpack-dev-server: Information disclosure and denial of service via improper proxy configuration

🗓️ 20 Jul 2026 11:56:31Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 4 Views

Information disclosure and denial of service in webpack-dev-server via broad proxy with WebSocket forwarding that leaks cookies.

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21 Jul 2026 22:19Current
5.2Medium risk
Vulners AI Score5.2
CVSS 3.14.3 - 5.3
EPSS0.00163
SSVC
4