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CVE-2023-1894

20
FAUCET Score

CVE-2023-1894 is a Regular Expression Denial of Service (ReDoS) vulnerability affecting Puppet Server 7.9.2 and Puppet Enterprise. This flaw allows an unauthenticated attacker to significantly slow down server operations by submitting specifically crafted certificate names. While the attack complexity is low, the potential impact is limited to availability, resulting in a CVSS score of 5.3 (MEDIUM). There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
2021.7.1CPE matchmatch criteria
cpe:2.3:a:puppet:puppet_enterprise:2021.7.1:*:*:*:*:*:*:*
2023.0CPE matchmatch criteria
cpe:2.3:a:puppet:puppet_enterprise:2023.0:*:*:*:*:*:*:*
7.9.2CPE matchmatch criteria
cpe:2.3:a:puppet:puppet_server:7.9.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
35.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 22nd percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.14 for RHEL 8Fixed in: puppetserver-0:7.11.0-1.el8sat
View patch

Vendor Advisories (1)

redhatCVE-2023-1894Moderate

puppet: Puppet Server ReDoS

May 2, 2023

References

puppet.com / security/cve/cve-2023-1894-puppet-server-redos
Vendor Advisory