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Microsoft Security Response CenterCVE-2026-27140

Code execution vulnerability in SWIG code generation in cmd/go

Mariner

Read the vendor bulletin Get alerts for azl3 golang 1.26.2-1 on Azure Linux
9.8CVSS out of 10Critical severity
Scope

What the vendor says is affected

  • azl3 golang 1.26.2-1 on Azure Linux 3.0
  • cbl2 golang 1.18.8-10 on CBL Mariner 2.0
  • cbl2 golang 1.22.7-5 on CBL Mariner 2.0
  • azl3 golang 1.25.8-1 on Azure Linux 3.0
  • azl3 golang 1.26.1-1 on Azure Linux 3.0
  • cbl2 msft-golang 1.25.8-1 on CBL Mariner 2.0
  • azl3 golang 1.25.9-1 on Azure Linux 3.0
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-2026-27140View CVSS, KEV, EPSS, and threat context
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