CRITICAL 9.8 Microsoft
CVE-2026-27143
Missing bound checks can lead to memory corruption in safe Go in cmd/compile
Microsoft Security Update 2026-Apr: Missing bound checks can lead to memory corruption in safe Go in cmd/compile
Affected Products
- 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
- azl3 golang 1.26.2-1 on Azure Linux 3.0
- azl3 golang 1.27.0-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27143
- https://nvd.nist.gov/vuln/detail/CVE-2026-27143
This critical severity vulnerability with a CVSS score of 9.8 was published on 2026-04-14 via Microsoft. Affected: 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 and 5 more.
Risk Timeline
CVE Disclosed2026-04-14 · 207 days ago
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27143NVD / MITRE
nvd.nist.gov/vuln/detail/CVE-2026-27143Related Vulnerabilities
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