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Openshift Container Platform CVE-2026-3012

| EUVDEUVD-2026-32211 MEDIUM
Insufficient Verification of Data Authenticity (CWE-345)
2026-05-27 secalert@redhat.com GHSA-59rx-q76w-hqrw
Information Disclosure Openshift Container Platform Samba Enterprise Linux
Medium
Disputed · 6.8 NVD
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Severity by source

Sources disagree (Low–High)
NVD PRIMARY
6.8 MEDIUM
AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
SUSE
3.1 LOW
AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Red Hat
8.0 HIGH
qualitative

vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.

CVSS VectorNVD

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

3
Severity Changed
Jun 15, 2026 - 22:22 NVD
HIGH MEDIUM
CVSS changed
Jun 15, 2026 - 22:22 NVD
8.0 (HIGH) 6.8 (MEDIUM)
Analysis Generated
May 27, 2026 - 19:52 vuln.today

DescriptionNVD

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.

AnalysisAI

Trust-store poisoning in Samba's certificate auto-enrollment lets an adjacent-network attacker install an attacker-controlled CA certificate when auto-enrollment is enabled. Because Samba retrieves the CA certificate over plaintext HTTP and adds it to the local trust store without verifying authenticity, a man-in-the-middle can have a rogue CA trusted system-wide, enabling interception or spoofing of otherwise trusted TLS communications. The issue carries CVSS 8.0 with high confidentiality and integrity impact and a changed scope; EPSS is 0.00% and no public exploit identified at time of analysis.

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Vendor StatusVendor

SUSE

Severity: Low
Product Status
Image SLES15-SP7-HPC-Azure Affected
SUSE Linux Enterprise Desktop 15 SP7 SUSE Linux Enterprise High Performance Computing 15 SP7 SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Server 15 SP7 SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed
SUSE Linux Enterprise High Availability Extension 15 SP5 Fixed
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CVE-2026-3012 vulnerability details – vuln.today
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