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cve.nowby Sazabi
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webpack-dev-server

7 known vulnerabilities (6 medium), with the versions each affects and the releases that fix them.

Latest release
6.1.0 (Oct 18, 2026): no advisory affects it
Newest unaffected release
6.1.0 (Oct 18, 2026), the latest release
Advisories
7 · 6 medium
Weekly downloads
21.6M
Dependents
283
Releases
228 since 0.6.0 (Sep 18, 2012)
Registry
npm
Releases read
Nov 8, 2026

Version timeline

Every release cve.now has on record, lowest version on the left; each bar is a run of versions an advisory affects.

Advisories 7

  • CVE-2026-14631Medium 5.3

    webpack-dev-server vulnerable to denial of service via a malformed Host or Origin header

    Affected: fixed in 5.2.6.

    Fixed in 5.2.6 (released Jul 2, 2026, 1 day before disclosure).

    The latest release, 6.1.0, is not affected.

    74% of webpack-dev-server downloads last week were affected versions (18.8M).

  • CVE-2026-14620Medium 4.7

    webpack-dev-server vulnerable to cross-site request forgery via internal developer endpoints

    Affected: fixed in 5.2.6.

    Fixed in 5.2.6 (released Jul 2, 2026, 1 day before disclosure).

    The latest release, 6.1.0, is not affected.

    74% of webpack-dev-server downloads last week were affected versions (18.8M).

  • CVE-2026-9595Medium 5.3

    webpack-dev-server vulnerable to HMR WebSocket interception via permissive user proxies

    Affected: fixed in 5.2.5.

    Fixed in 5.2.5 (released Jun 12, 2026, 3 days before disclosure).

    The latest release, 6.1.0, is not affected.

    71% of webpack-dev-server downloads last week were affected versions (18.2M).

  • CVE-2026-6402Medium 5.3

    webpack-dev-server vulnerable to cross-origin source code exposure on non-HTTPS origins

    Affected: fixed in 5.2.4.

    Fixed in 5.2.4 (released May 11, 2026, 1 day before disclosure).

    The latest release, 6.1.0, is not affected.

    70% of webpack-dev-server downloads last week were affected versions (17.8M).

  • CVE-2025-30360Medium 6.5

    webpack-dev-server users' source code may be stolen when they access a malicious web site with non-Chromium based browser

    Affected: fixed in 5.2.1.

    Fixed in 5.2.1 (released Mar 26, 2025, 69 days before disclosure).

    The latest release, 6.1.0, is not affected.

    49% of webpack-dev-server downloads last week were affected versions (12.5M).

  • CVE-2025-30359Medium 5.3

    webpack-dev-server users' source code may be stolen when they access a malicious web site

    Affected: fixed in 5.2.1.

    Fixed in 5.2.1 (released Mar 26, 2025, 69 days before disclosure).

    The latest release, 6.1.0, is not affected.

    49% of webpack-dev-server downloads last week were affected versions (12.5M).

  • An issue was discovered in lib/Server.js in webpack-dev-server before 3.1.6.

    Affected: fixed in 3.1.11.

    Fixed in 3.1.11 (released Dec 21, 2018, 91 days after disclosure).

    The latest release, 6.1.0, is not affected.

    1.6% of webpack-dev-server downloads last week were affected versions (401.9K).