What is CVE-2026-3184?

CVE-2026-3184 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. Util-linux: util-linux: access control bypass due to improper hostname canonicalization

Which CVE IDs does CVE-2026-3184 cover?

CVE-2026-3184 covers the following CVE IDs: CVE-2026-3184. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-3184?

CVE-2026-3184 has a CVSS v3 base score of 3.7, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-3184?

CVE-2026-3184 affects 4 products, including: azl3 util-linux 2.40.2-3 on Azure Linux 3.0; azl3 util-linux 2.40.2-4 on Azure Linux 3.0; cbl2 util-linux 2.37.4-10 on CBL Mariner 2.0; cbl2 util-linux 2.37.4-10 on CBL-Mariner 2.0.

CVE-2026-3184LowCVSS 3.7

Util-linux: util-linux: access control bypass due to improper hostname canonicalization

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-3184 →

🎯 Affected products4

azl3 util-linux 2.40.2-3 on Azure Linux 3.0
azl3 util-linux 2.40.2-4 on Azure Linux 3.0
cbl2 util-linux 2.37.4-10 on CBL Mariner 2.0
cbl2 util-linux 2.37.4-10 on CBL-Mariner 2.0

✅ Remediation

KBRelease Notes (Security Update) — fixed build 2.37.4-11 KBCBL-Mariner Releases (Security Update) — fixed build 2.37.4-11 KBCBL-Mariner Releases (Security Update) — fixed build 2.40.2-4

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-3184
referencehttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade