What’s Vulnerable › Vulnerabilities

CVE-2023-5255: Denial of Service for Revocation of Auto Renewed Certificates

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-03 · updated 2026-06-17
• Weakness: CWE-404

Description

For certificates that utilize the auto-renew feature in Puppet Server, a flaw exists which prevents the certificates from being revoked.

Affected products

• Puppet Enterprise: 2023.3
• Puppet server: 8.2.0, 8.2.1

References

• https://www.puppet.com/security/cve/cve-2023-5255-denial-service-revocation-auto-renewed-certificates
• https://www.puppet.com/security/cve/cve-2023-5255-denial-service-revocation-auto-renewed-certificates

Get alerted when CVE-2023-5255 or the next vulnerability affects your stack