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Vulnerability record · CVE-2019-10806 · published 9 March 2020

CVE-2019-10806: Vega project vega prototype pollution vulnerability

Vega Project · Vega

vega-util prior to 1.13.1 allows manipulation of object prototype. The 'vega.mergeConfig' method within vega-util could be tricked into adding or modifying properties of the Object.prototype.

4.3 CVSS 3.1 Medium EPSS 1.1% · top 35.5% CWE-1321 · Prototype pollution
4.3CVSS 3.1 base score, v2 4.0
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

vega-util prior to 1.13.1 allows manipulation of object prototype. The 'vega.mergeConfig' method within vega-util could be tricked into adding or modifying properties of the Object.prototype.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/vega/vega/commit/8f33a0b5170d7de4f12fc248ec0901234342367b PatchThird Party Advisory
https://snyk.io/vuln/SNYK-JS-VEGAUTIL-559223 ExploitThird Party Advisory
https://github.com/vega/vega/commit/8f33a0b5170d7de4f12fc248ec0901234342367b PatchThird Party Advisory
https://snyk.io/vuln/SNYK-JS-VEGAUTIL-559223 ExploitThird Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-10806), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.