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CVE-2026-3012 Details

Description

A flaw was found in Samba’s certificate auto-enrollment Group Policy handling. When certificate auto-enrollment is enabled, Samba may retrieve a CA certificate over an unencrypted HTTP connection and install it into the local trust store without proper verification. An attacker with the ability to intercept or redirect network traffic could exploit this behavior to supply a malicious certificate authority certificate, potentially allowing interception or spoofing of trusted communications.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.8 MEDIUMVector:CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CNA: redhat-SADPCVSS-B:8 HIGHVector:CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:22644 redhat-SADPIssue Tracking
https://access.redhat.com/errata/RHSA-2026:22963 redhat-SADPIssue Tracking
https://access.redhat.com/errata/RHSA-2026:25049 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:25979 redhat-SADP
https://access.redhat.com/errata/RHSA-2026:28053 redhat-SADP

see all 48 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-345Insufficient Verification of Data Authenticityredhat-SADP
CWE-345Insufficient Verification of Data Authenticity[email protected]

Affected Products

ProductVersions
redhat openshift container platform
4.0

CPE

  • cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
samba samba
>= 4.16.0, < 4.21.0

CPE

  • cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat enterprise linux
7.0
9.0

CPE

  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

38 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-3012
NVD Published Date:
May 27, 2026
NVD Last Modified:
Sep 18, 2026
Source:
[email protected]
CVE-2026-3012 Details - Not Deferred