CVE-2026-76844

A flaw was found in webpack-dev-middleware. A remote attacker can exploit a path traversal vulnerability when the configured publicPath lacks a trailing slash. By sending a specially crafted request, the attacker can bypass a security guard, allowing the middleware to resolve files from one...

Linux Distros Unpatched Vulnerability : CVE-2026-76844

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - webpack-dev-middleware resolves a request to a local file in getFilenameFromUrl by testing the request pathname against a traversal guard and then slicing it at...

CVE-2026-76844

webpack-dev-middleware resolves a request to a local file in getFilenameFromUrl by testing the request pathname against a traversal guard and then slicing it at a fixed character offset. The guard, UPPATHREGEXP applied to path.normalize./$pathname, only matches ".." that stands as a whole path...

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...

CVE-2026-76844 webpack-dev-middleware Path Traversal via Offset Slice on a Non-Slash-Terminated publicPath

webpack-dev-middleware resolves a request to a local file in getFilenameFromUrl by testing the request pathname against a traversal guard and then slicing it at a fixed character offset. The guard, UPPATHREGEXP applied to path.normalize./$pathname, only matches ".." that stands as a whole path...

CVE-2026-76844 webpack-dev-middleware Path Traversal via Offset Slice on a Non-Slash-Terminated publicPath

webpack-dev-middleware resolves a request to a local file in getFilenameFromUrl by testing the request pathname against a traversal guard and then slicing it at a fixed character offset. The guard, UPPATHREGEXP applied to path.normalize./$pathname, only matches ".." that stands as a whole path...

EUVD-2026-64850

webpack-dev-middleware resolves a request to a local file in getFilenameFromUrl by testing the request pathname against a traversal guard and then slicing it at a fixed character offset. The guard, UPPATHREGEXP applied to path.normalize./$pathname, only matches ".." that stands as a whole path...

PT-2026-80854

Name of the Vulnerable Software and Affected Versions webpack-dev-middleware versions 5.3.4 through 5.x webpack-dev-middleware versions 6.1.2 through 6.x webpack-dev-middleware versions 7.1.0 through 7.x Description The software fails to sufficiently validate URL addresses before returning local...