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.
References
| Link | Resource |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:22644 | Issue Tracking |
| https://access.redhat.com/errata/RHSA-2026:22963 | Issue Tracking |
| https://access.redhat.com/errata/RHSA-2026:25049 | |
| https://access.redhat.com/security/cve/CVE-2026-3012 | Mitigation Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2447319 | Issue Tracking Third Party Advisory |
| https://bugzilla.samba.org/show_bug.cgi?id=16003 | Issue Tracking Mitigation Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
10 Jun 2026, 16:17
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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08 Jun 2026, 14:59
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://access.redhat.com/errata/RHSA-2026:22644 - Issue Tracking | |
| References | () https://access.redhat.com/errata/RHSA-2026:22963 - Issue Tracking | |
| References | () https://access.redhat.com/security/cve/CVE-2026-3012 - Mitigation, Third Party Advisory | |
| References | () https://bugzilla.redhat.com/show_bug.cgi?id=2447319 - Issue Tracking, Third Party Advisory | |
| References | () https://bugzilla.samba.org/show_bug.cgi?id=16003 - Issue Tracking, Mitigation, Vendor Advisory | |
| First Time |
Redhat enterprise Linux
Redhat Samba Samba samba Redhat openshift Container Platform |
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| CPE | cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* |
04 Jun 2026, 00:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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03 Jun 2026, 06:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
27 May 2026, 12:17
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-345 |
27 May 2026, 11:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-27 11:16
Updated : 2026-06-10 16:17
NVD link : CVE-2026-3012
Mitre link : CVE-2026-3012
CVE.ORG link : CVE-2026-3012
JSON object : View
Products Affected
samba
- samba
redhat
- openshift_container_platform
- enterprise_linux
CWE
CWE-345
Insufficient Verification of Data Authenticity