CVE-2023-1894

Name: CVE-2023-1894
Creator: NVD / NIST
Published: 2023-05-04T23:15:08.763+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.44%

Last modified Jun 17, 2026

CVE-2023-1894 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A Regular Expression Denial of Service (ReDoS) issue was discovered in Puppet Server 7.9.2 certificate validation. An issue related to specifically crafted certificate names significantly slowed down server operations.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

A Regular Expression Denial of Service (ReDoS) issue was discovered in Puppet Server 7.9.2 certificate validation. An issue related to specifically crafted certificate names significantly slowed down server operations.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.44%

34.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-1333

Affected Software

Vendor	Product	Versions
Puppet	Puppet Enterprise	2021.7.1
Puppet	Puppet Enterprise	2023.0
Puppet	Puppet Server	7.9.2

References

https://www.puppet.com/security/cve/cve-2023-1894-puppet-server-redosVendor Advisory
https://www.puppet.com/security/cve/cve-2023-1894-puppet-server-redosVendor Advisory

Timeline

Published: May 4, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-1894?

How severe is CVE-2023-1894?

CVE-2023-1894 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2023-1894?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-1894?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST