Vendor
Webpack vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 7 vulnerabilities in Webpack: 0 in the last 7 days and 2 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-14631, was published on 3 July 2026. 1 technology has a page of its own.
- Last 7 days
- 0
- Last 90 days
- 2
- Critical, all time
- 0
- Exploited in the wild
- 0
About Webpack
Webpack is an open-source static module bundler for modern JavaScript applications.
Webpack technologies
Latest Webpack vulnerabilities
- CVE-2026-14631: webpack webpack-dev-server Denial of Service via malformed headersmediumCVSS 5.3EPSS 0.5%
- CVE-2026-14620: webpack webpack-dev-server CSRF in developer endpointsmediumCVSS 4.7EPSS 0.5%
- CVE-2026-9595: webpack-dev-server HMR WebSocket interception via permissive proxiesmediumCVSS 5.3EPSS 0.2%
- CVE-2026-6402: webpack webpack-dev-server cross-origin source code exposuremediumCVSS 5.3EPSS 0.4%
- CVE-2025-30360: webpack-dev-server source code disclosure via WebSocket in non-Chromium browserslowCVSS 3.1EPSS 0.3%
- CVE-2025-30359: webpack-dev-server source code disclosure via cross-origin requestslowCVSS 3.1EPSS 0.6%
- CVE-2018-14732: webpack-dev-server missing origin validation in WebSocketlowCVSS 3EPSS 2.6%
Most severe Webpack vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-14631: webpack webpack-dev-server Denial of Service via malformed headersmediumCVSS 5.3EPSS 0.5%
- CVE-2026-6402: webpack webpack-dev-server cross-origin source code exposuremediumCVSS 5.3EPSS 0.4%
- CVE-2026-9595: webpack-dev-server HMR WebSocket interception via permissive proxiesmediumCVSS 5.3EPSS 0.2%
- CVE-2026-14620: webpack webpack-dev-server CSRF in developer endpointsmediumCVSS 4.7EPSS 0.5%
- CVE-2025-30359: webpack-dev-server source code disclosure via cross-origin requestslowCVSS 3.1EPSS 0.6%
- CVE-2025-30360: webpack-dev-server source code disclosure via WebSocket in non-Chromium browserslowCVSS 3.1EPSS 0.3%
- CVE-2018-14732: webpack-dev-server missing origin validation in WebSocketlowCVSS 3EPSS 2.6%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 2 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/webpack.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Webpack vulnerabilities", https://junglewise.ai/threats/vendors/webpack, 26 September 2026.