CVE-2026-27140CriticalMicrosoft CVSS 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U

Microsoft security update for CVE-2026-27140

Published
June 2, 2026
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2026-27140 →

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27140. This page also shows what EchelonGraph holds for CVE-2026-27140, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products9

  • azl3 golang 1.25.8-1 on Azure Linux 3.0
  • azl3 golang 1.25.9-1 on Azure Linux 3.0
  • azl3 golang 1.26.1-1 on Azure Linux 3.0
  • azl3 golang 1.26.2-1 on Azure Linux 3.0
  • azl3 golang 1.27.0-1 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
  • cbl2 msft-golang 1.25.8-1 on CBL Mariner 2.0
  • cbl2 msft-golang 1.25.8-1 on CBL-Mariner 2.0

✅ Updates Microsoft lists: 2 updates

2 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
—Security Update—
—Security Update—

🧭 EchelonGraph on CVE-2026-27140

EchelonGraph score
8.8 HIGH
CISA KEV
Not listed
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

SWIG file names containing 'cgo' and well-crafted payloads could lead to code smuggling and arbitrary code execution at build time due to trust layer bypass.

Published by Go Project, the CVE Numbering Authority that assigned CVE-2026-27140, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (2)