CVE-2025-56648mediumCWE-346

CVE-2025-56648

Published 17 Sep 2025 · Updated 26 Jan 2026

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.5epss 0.2%

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products

n/a · n/a

References

https://gist.github.com/R4356th/41f468def606b2406e36f7193f5322b8 https://github.com/parcel-bundler/parcel/commit/4bc56e3242a85491c7edf589966e9b44c6330c49 https://github.com/parcel-bundler/parcel/discussions/10089 https://github.com/parcel-bundler/parcel/issues/10216