Signal is active with 3 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
webpack-dev-server versions 5.2.5 and earlier expose two internal developer endpoints, /webpack-dev-server/open-editor and /webpack-dev-server/invalidate, that perform state-changing actions on any GET request without verifying that the request originated from the dev server's own page. Any website a developer visits while the dev server is running can trigger these endpoints cross-origin with no interaction beyond the visit. An attacker can open an arbitrary existing local file in the developer's editor, including files outside the project root, and repeated requests can spawn editor processes and force recompilations that degrade the developer's machine. Patches: upgrade to webpack-dev-server 5.2.6. Workarounds: none.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
🚨 Medium-severity security fix in webpack-dev-server@5.2.6 just released! Patches CVE-2026-14620: webpack-dev-server vulnerable to cross-site request forgery via internal developer endpoints https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-f5vj-f2hx-8m93
Post summary
The tweet announces a patch for CVE-2026-14620, a CSRF flaw in webpack-dev-server, and provides a link to a GitHub security advisory.
🚨*CVE* CVE-2026-14620 webpack-dev-server versions 5.2.5 and earlier expose two internal developer endpoints, /webpack-dev-server/open-editor and /webpack-dev-server/invalidate, that perfor… https://www.cve.org/CVERecord?id=CVE-2026-14620 ----- Traducción: CVE-2026-14620 web… http://infoflow.cloud`
Post summary
The post announces CVE-2026-14620, detailing exposed internal development endpoints in webpack-dev-server 5.2.5 and earlier, without indicating exploitation tools, activity, or patches.
CVE-2026-14620 webpack-dev-server versions 5.2.5 and earlier expose two internal developer endpoints, /webpack-dev-server/open-editor and /webpack-dev-server/invalidate, that perfor… https://www.cve.org/CVERecord?id=CVE-2026-14620
Post summary
The post announces CVE‑2026‑14620, detailing exposed internal endpoints in webpack‑dev‑server and providing basic technical information about the flaw.
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| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | webpack.js | webpack-dev-server | - | - | - |