CVE-2026-14620
CVE-2026-14620 · webpack-dev-server vulnerable to cross-site request forgery via internal developer endpoints
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 4.7 · Medium · EPSS 0.5% · Public exploit · Fix available
- Published
- Updated
Stack: node
Affected products and versions
webpack-dev-server
- Versions
- ≥ 0, < 5.2.6: Affected (semver)
- 5.2.6: Not affected (semver)
Update to 5.2.6
webpack-dev-server npm
- Affected ranges
- SEMVER: < 5.2.6
Update to 5.2.6