CVE-2018-11746

Puppet Discovery can leak authentication information

8.6 High

In Puppet Discovery prior to 1.2.0, when running Discovery against Windows hosts, WinRM connections can fall back to using basic auth over insecure channels if a HTTPS server is not available. This can expose the login credentials being used by Puppet Discovery.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

1.38%Up 0.8 points since Apr 14, 2021

What each source reports

CVE List Score used 8.6

Puppet Discovery can leak authentication information

Record: CVE-2018-11746
CVSS 3.0: 8.6 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Updated: 2026-11-02

EUVDEUVD-2018-3765 8.6

Record: EUVD-2018-3765
CVSS 3.0: 8.6 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-jvhf-6jm8-m5v7 9.8

In Puppet Discovery prior to 1.2.0, when running Discovery against Windows hosts, WinRM...

Record: GHSA-jvhf-6jm8-m5v7
CVSS 3.0: 9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-522
Updated: 2026-11-02

NVD 8.6

Record: CVE-2018-11746
CVSS 3.0: 8.6 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS 3.0: 9.8 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-522
Updated: 2026-11-02

Affected products

puppet discovery

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-11746 is a high vulnerability (CVSS 8.6) in Puppet Discovery, published July 3, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.38%, the 72nd percentile. No source names a fixed version.