Prototype Pollution in Node-Cube
CVE-2025-57348
The node-cube package (prior to version 5.0.0) contains a vulnerability in its handling of prototype chain initialization, which could allow an attacker to inject properties into the prototype of built-in objects. This issue, categorized under CWE-1321, arises from improper validation of user-supplied input in the package's resource initialization process. Successful exploitation may lead to denial of service or arbitrary code execution in affected environments. The vulnerability affects versions up to and including 5.0.0-beta.19, and no official fix has been released to date.
Vulnerability class: Prototype Pollution
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (32.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Node-Cube — versions 5.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/node-cube/cube/issues/153 (Third Party Advisory)
- github.com/VulnSageAgent/PoCs/tree/main/JavaScript/prototype-pollution/CVE-2025… (Third Party Advisory)
Frequently asked questions
- What is CVE-2025-57348?
- CVE-2025-57348 is a medium-severity vulnerability in Node-Cube, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 6.5/10. Published 2025-09-24.
- How severe is CVE-2025-57348?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2025-57348 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.