CVE-2026-76844

webpack-dev-middleware suffers from a path traversal vulnerability in its getFilenameFromUrl function, an incomplete fix for CVE-2024-29180 . When publicPath is configured without a trailing slash, a crafted request (e.g., GET /assets../.env against publicPath /assets) bypasses the UP_PATH_REGEXP...

Denial Of Service (DoS)

webpack-dev-middleware is vulnerable to denial of service. A memory leak occurs when the function writeToDisk is used, causing the compile-time to keep increasing as the duplicates write to disk keep increasing, eventually leading to a denial of service condition...