CVE-2021-27020

HIGHNVD 8.88.8—

8.8

Puppet Enterprise presented a security risk by not sanitizing user input when doing a CSV export.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 65.9%
KEV: Not listed

Published

August 30, 2021

Last Modified

November 21, 2024

References (2)

security@puppethttps://puppet.com/security/cve/CVE-2021-27020
af854a3a-2127-422b-91ae-364da2661108https://puppet.com/security/cve/CVE-2021-27020

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-1236Improper Neutralization of Formula Elements in a CSV File

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 13:42 UTCepss_batch
2026-05-26 11:18 UTCEG score recompute
2026-05-26 11:18 UTCGHSA enrichment
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2021-27020?

CVE-2021-27020 is a high vulnerability published on August 30, 2021. Puppet Enterprise presented a security risk by not sanitizing user input when doing a CSV export.

When was CVE-2021-27020 disclosed?

CVE-2021-27020 was first published in the National Vulnerability Database on August 30, 2021, 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-2021-27020 actively exploited?

CVE-2021-27020 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 65.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-27020?

CVE-2021-27020 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2021-27020?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-27020, 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-2021-27020

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CVE-2021-27020

📅 Published

🔄 Last Modified

🔗 References (2)