Vulnerability Database · npm · webpack-dev-server · Version
webpack-dev-server 3.8.0
3.8.0 is affected by 6 vulnerabilities.
The vulnerabilities that cover this exact version are listed below with the fixed version to move to.
Critical 0 High 0 Medium 6 Low 0 Unrated 0
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Released 09 Aug 2019
Licence MIT
Also known from other sources 6
Newer releases 228
Database updated 23/Oct/2026
Release and licence data published by the npm registry. Licence information is not legal advice.
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01 Vulnerabilities affecting this version
webpack-dev-server 3.8.0 vulnerabilities
6 vulnerabilities cover webpack-dev-server 3.8.0. Open the full list in the database.
| Vulnerability | Severity | Fixed version | Disclosed |
|---|---|---|---|
| CVE-2025-30360: webpack-dev-server Source Code Theft via Non-Chromium Browsers | 6.5 medium | 5.2.1 | 04 Jun 2025 |
| CVE-2026-14631: webpack-dev-server Denial of Service via Malformed Host or Origin Header | 5.3 medium | 5.2.6 | 20 Jul 2026 |
| CVE-2026-9595: webpack-dev-server Vulnerable to HMR WebSocket Interception via Permissive User Proxies | 5.3 medium | 5.2.5 | 17 Jun 2026 |
| CVE-2026-6402: webpack-dev-server Cross-Origin Source Code Exposure on Non-HTTPS Origins | 5.3 medium | 5.2.4 | 18 May 2026 |
| CVE-2025-30359: webpack-dev-server Source Code Theft Vulnerability | 5.3 medium | 5.2.1 | 04 Jun 2025 |
| CVE-2026-14620: webpack-dev-server Vulnerable to Cross-Site Request Forgery via Internal Developer Endpoints | 4.7 medium | 5.2.6 | 20 Jul 2026 |
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Questions
About webpack-dev-server 3.8.0
Is webpack-dev-server 3.8.0 vulnerable?
Yes. 6 vulnerabilities in the Vulert database cover webpack-dev-server 3.8.0: 0 critical, 0 high, 6 medium and 0 low. Each entry above names the fixed version to move to.
Is 3.8.0 the latest release of webpack-dev-server?
No. 3.8.0 was published 09 Aug 2019, and newer releases exist. Newer is not automatically safer — the version table on the package page shows what each release carries.
How do I monitor webpack-dev-server for upcoming vulnerabilities?
Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the webpack-dev-server version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.