CVEvulnerability
CVE-2025-56648
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2025-09-17
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-346
Description
npm parcel 2.0.0-alpha and before has an Origin Validation Error vulnerability. Malicious websites can send XMLHTTPRequests to the application's development server and read the response to steal source code when developers visit them.
Affected configurations
• parceljs parcel (<= 1.10.3)
• parceljs parcel 2.0.0
Related
Weakness · CWE (1)
- CWE-346 Origin Validation Error weakness
References
- https://gist.github.com/R4356th/41f468def606b2406e36f7193f5322b8 Exploit
- https://github.com/parcel-bundler/parcel/commit/4bc56e3242a85491c7edf589966e9b44c6330c49 github.com
- https://github.com/parcel-bundler/parcel/discussions/10089 Issue Tracking
- https://github.com/parcel-bundler/parcel/issues/10216 Exploit, Issue Tracking