# webpack-dev-server (npm) vulnerabilities

Source: https://junglewise.ai/threats/technologies/webpack-dev-server  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/webpack-dev-server.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 7 vulnerabilities in webpack-dev-server (npm): 0 in the last 7 days and 0 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.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 7 (0 critical, 0 exploited in the wild)

## About webpack-dev-server (npm)

A development server that provides live reloading for webpack applications.

## Latest webpack-dev-server (npm) vulnerabilities

- [CVE-2026-14631: webpack webpack-dev-server Denial of Service via malformed headers](https://junglewise.ai/threats/cve-2026-14631-webpack-webpack-dev-server-denial-of-service-via-malformed) (medium, CVSS 5.3, published 3 Jul 2026)
- [CVE-2026-14620: webpack webpack-dev-server CSRF in developer endpoints](https://junglewise.ai/threats/cve-2026-14620-webpack-webpack-dev-server-csrf-in-developer-endpoints) (medium, CVSS 4.7, published 3 Jul 2026)
- [CVE-2026-9595: webpack-dev-server HMR WebSocket interception via permissive proxies](https://junglewise.ai/threats/cve-2026-9595-webpack-dev-server-hmr-websocket-interception-via-permissive) (medium, CVSS 5.3, published 15 Jun 2026)
- [CVE-2026-6402: webpack webpack-dev-server cross-origin source code exposure](https://junglewise.ai/threats/cve-2026-6402-webpack-webpack-dev-server-cross-origin-source-code-exposure) (medium, CVSS 5.3, published 12 May 2026)
- [CVE-2025-30360: webpack-dev-server source code disclosure via WebSocket in non-Chromium browsers](https://junglewise.ai/threats/cve-2025-30360-webpack-dev-server-source-code-disclosure-via-websocket-in-non) (low, CVSS 3.1, published 4 Jun 2025)
- [CVE-2025-30359: webpack-dev-server source code disclosure via cross-origin requests](https://junglewise.ai/threats/cve-2025-30359-webpack-dev-server-source-code-disclosure-via-cross-origin) (low, CVSS 3.1, published 4 Jun 2025)
- [CVE-2018-14732: webpack-dev-server missing origin validation in WebSocket](https://junglewise.ai/threats/cve-2018-14732-webpack-dev-server-missing-origin-validation-in-websocket) (low, CVSS 3, published 4 Jan 2019)

## Most severe webpack-dev-server (npm) vulnerabilities

- [CVE-2026-14631: webpack webpack-dev-server Denial of Service via malformed headers](https://junglewise.ai/threats/cve-2026-14631-webpack-webpack-dev-server-denial-of-service-via-malformed) (medium, CVSS 5.3, published 3 Jul 2026)
- [CVE-2026-6402: webpack webpack-dev-server cross-origin source code exposure](https://junglewise.ai/threats/cve-2026-6402-webpack-webpack-dev-server-cross-origin-source-code-exposure) (medium, CVSS 5.3, published 12 May 2026)
- [CVE-2026-9595: webpack-dev-server HMR WebSocket interception via permissive proxies](https://junglewise.ai/threats/cve-2026-9595-webpack-dev-server-hmr-websocket-interception-via-permissive) (medium, CVSS 5.3, published 15 Jun 2026)
- [CVE-2026-14620: webpack webpack-dev-server CSRF in developer endpoints](https://junglewise.ai/threats/cve-2026-14620-webpack-webpack-dev-server-csrf-in-developer-endpoints) (medium, CVSS 4.7, published 3 Jul 2026)
- [CVE-2025-30359: webpack-dev-server source code disclosure via cross-origin requests](https://junglewise.ai/threats/cve-2025-30359-webpack-dev-server-source-code-disclosure-via-cross-origin) (low, CVSS 3.1, published 4 Jun 2025)
- [CVE-2025-30360: webpack-dev-server source code disclosure via WebSocket in non-Chromium browsers](https://junglewise.ai/threats/cve-2025-30360-webpack-dev-server-source-code-disclosure-via-websocket-in-non) (low, CVSS 3.1, published 4 Jun 2025)
- [CVE-2018-14732: webpack-dev-server missing origin validation in WebSocket](https://junglewise.ai/threats/cve-2018-14732-webpack-dev-server-missing-origin-validation-in-websocket) (low, CVSS 3, published 4 Jan 2019)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other npm technologies

- [openclaw (npm)](https://junglewise.ai/threats/technologies/npm-openclaw): 214 vulnerabilities
- [flowise (npm)](https://junglewise.ai/threats/technologies/flowise): 133 vulnerabilities
- [parse-server (npm)](https://junglewise.ai/threats/technologies/parse-server): 117 vulnerabilities
- [vm2 (npm)](https://junglewise.ai/threats/technologies/vm2): 111 vulnerabilities
- [electron (npm)](https://junglewise.ai/threats/technologies/electron): 77 vulnerabilities
- [ghost (npm)](https://junglewise.ai/threats/technologies/ghost): 74 vulnerabilities
- [n8n (npm)](https://junglewise.ai/threats/technologies/npm-n8n): 64 vulnerabilities
- [hono (npm)](https://junglewise.ai/threats/technologies/hono): 62 vulnerabilities
- [directus (npm)](https://junglewise.ai/threats/technologies/directus): 61 vulnerabilities
- [nocodb (npm)](https://junglewise.ai/threats/technologies/nocodb): 54 vulnerabilities
- [undici (npm)](https://junglewise.ai/threats/technologies/undici): 53 vulnerabilities
- [@budibase/server (npm)](https://junglewise.ai/threats/technologies/budibase-server): 42 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "webpack-dev-server (npm) vulnerabilities", https://junglewise.ai/threats/technologies/webpack-dev-server, 13 November 2026.