What is the CVSS score of CVE-2025-56648?

CVE-2025-56648 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Node.js are affected by CVE-2025-56648?

Organizations using npm parcel 2.0.0-alpha and before should be aware of notable risk from CVE-2025-56648 rated CVSS 6.5. Exploitation could compromise the security of affected deployments.. A patch is available.

Is there a public PoC exploit available for CVE-2025-56648?

Yes, a public proof-of-concept exploit is available for CVE-2025-56648. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-56648?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Node.js CVE-2025-56648

MEDIUM

Origin Validation Error (CWE-346)

2025-09-17 cve@mitre.org

Information Disclosure Node.js Parcel Red Hat

6.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.5 MEDIUM

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

Red Hat

6.5 MEDIUM

qualitative

Primary rating from NVD.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:12 vuln.today

PoC Detected

Jan 26, 2026 - 17:16 vuln.today

Public exploit code

CVE Published

Sep 17, 2025 - 19:15 nvd

MEDIUM 6.5

DescriptionCVE.org

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.

AnalysisAI

npm parcel 2.0.0-alpha and before has an Origin Validation Error vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-346. 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 products include: Parceljs Parcel.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.