CVE-2023-5309

Name: CVE-2023-5309
Creator: NVD / NIST
Published: 2023-11-07T19:15:12.503+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.50%

Last modified Jun 17, 2026

CVE-2023-5309 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Versions of Puppet Enterprise prior to 2021.7.6 and 2023.5 contain a flaw which results in broken session management for SAML implementations. . EPSS estimates a 0.50% chance of exploitation in the next 30 days.

Description

Versions of Puppet Enterprise prior to 2021.7.6 and 2023.5 contain a flaw which results in broken session management for SAML implementations.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.50%

38.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Puppet	Puppet Enterprise	< 2021.7.6
Puppet	Puppet Enterprise	>= 2023.0, < 2023.5.0

References

Timeline

Published: Nov 7, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-5309?

Versions of Puppet Enterprise prior to 2021.7.6 and 2023.5 contain a flaw which results in broken session management for SAML implementations.

How severe is CVE-2023-5309?

CVE-2023-5309 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.50% probability of exploitation in the next 30 days.

How do I fix CVE-2023-5309?

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-2023-5309?

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

Scan your code now

Source: NVD / NIST