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Microsoft Security Response CenterCVE-2026-3184

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

Mariner

Read the vendor bulletin Get alerts for cbl2 util-linux 2.37.4-10 on CBL Mariner
3.7CVSS out of 10Low severity
Scope

What the vendor says is affected

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

Versions the vendor lists as fixed

  • 2.40.2-4
Next step

What the vendor recommends

CBL-Mariner Releases

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-3184View CVSS, KEV, EPSS, and threat context
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