CVE-2020-28278

CRITICALNVD 9.89.8—

9.8

Prototype pollution vulnerability in 'shvl' versions 1.0.0 through 2.0.1 allows an attacker to cause a denial of service and may lead to remote code execution.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 86.5%
KEV: Not listed

Published

December 29, 2020

Last Modified

November 21, 2024

References (4)

vulnerabilitylab@mendhttps://github.com/robinvdvleuten/shvl/blob/bef0a3ebade444cc6b297147ecf5242308f0892e/index.js#L10
vulnerabilitylab@mendhttps://www.whitesourcesoftware.com/vulnerability-database/CVE-2020-28278
af854a3a-2127-422b-91ae-364da2661108https://github.com/robinvdvleuten/shvl/blob/bef0a3ebade444cc6b297147ecf5242308f0892e/index.js#L10
af854a3a-2127-422b-91ae-364da2661108https://www.whitesourcesoftware.com/vulnerability-database/CVE-2020-28278

Affected Packages

(1 across 1 ecosystem)

npm(1)

Package	Vulnerable range	Fixed in	Dependents
shvl	—	2.0.2	—

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 22:55 UTCEG score recompute
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2020-28278?

CVE-2020-28278 is a critical vulnerability published on December 29, 2020. Prototype pollution vulnerability in 'shvl' versions 1.0.0 through 2.0.1 allows an attacker to cause a denial of service and may lead to remote code execution.

When was CVE-2020-28278 disclosed?

CVE-2020-28278 was first published in the National Vulnerability Database on December 29, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-28278 actively exploited?

CVE-2020-28278 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 86.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-28278?

CVE-2020-28278 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2020-28278?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-28278, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-28278

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CVE-2020-28278

📅 Published

🔄 Last Modified

🔗 References (4)