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Vulnerability record · CVE-2021-27023 · published 18 November 2021

CVE-2021-27023: Puppet agent vulnerability

Puppet · Puppet Agent

A flaw was discovered in Puppet Agent and Puppet Server that may result in a leak of HTTP credentials when following HTTP redirects to a different host. This is similar to CVE-2018-1000007

9.8 CVSS 3.1 Critical EPSS 1.4% · top 29.2%
9.8CVSS 3.1 base score, v2 5.0
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

A flaw was discovered in Puppet Agent and Puppet Server that may result in a leak of HTTP credentials when following HTTP redirects to a different host. This is similar to CVE-2018-1000007

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

Affected products

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

References

LinkTags
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62SELE7EKVKZL4GABFMVYMI
https://puppet.com/security/cve/CVE-2021-27023 Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62SELE7EKVKZL4GABFMVYMI
https://puppet.com/security/cve/CVE-2021-27023 Vendor 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-2021-27023), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.