Status: UPDATED | Advisory ID: CVE-2026-3012
| CVE | CVE-2026-3012 |
| CVSS Score / Version | 8.0 (High) / CVSS v3.1 |
| Updated | 2026-10-01 |
| CVSS Vector | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N |
| CVSS Prose | attack vector is adjacent; attack complexity is high; privileges required is none; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is high; availability impact is none. |
| Affected products | see table below |
| Classified as | CWE-345 (Insufficient Verification of Data Authenticity) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Red Hat | Enterprise Linux | ||
| Red Hat | OpenShift Container Platform | ||
| Red Hat | Red Hat Enterprise Linux 10 | ||
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | ||
| Red Hat | Red Hat Enterprise Linux 8 | ||
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | ||
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | ||
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | ||
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | ||
| Red Hat | Red Hat Enterprise Linux 9 | ||
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | ||
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | ||
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | ||
| Red Hat | Red Hat Enterprise Linux 7 | ||
| samba | samba | ||
| Red Hat | Red Hat OpenShift Container Platform 4.12 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.13 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.14 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.15 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.16 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.17 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.18 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.19 | ||
| Red Hat | Red Hat OpenShift Container Platform 4 |
| Subsystems | Core Infrastructure, EWS Workstation Delivery/Virtualization |
| Sectors | All Sectors |
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. (NVD)
Monitor Red Hat's and samba's web pages for any future patch releases. See vendor advisory link below.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-3012 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-3012 |
| Vendor advisory | https://bugzilla.samba.org/show_bug.cgi?id=16003 |