What is CVE-2026-27142?

CVE-2026-27142 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. URLs in meta content attribute actions are not escaped in html/template

Which CVE IDs does CVE-2026-27142 cover?

CVE-2026-27142 covers the following CVE IDs: CVE-2026-27142. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-27142?

CVE-2026-27142 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-27142?

CVE-2026-27142 affects 12 products, including: azl3 golang 1.25.7-1 on Azure Linux 3.0; azl3 golang 1.25.8-1 on Azure Linux 3.0; azl3 golang 1.25.9-1 on Azure Linux 3.0; azl3 golang 1.26.0-1 on Azure Linux 3.0; azl3 golang 1.26.1-1 on Azure Linux 3.0; and others — see the full list on the advisory page.

CVE-2026-27142HighCVSS 7.5

URLs in meta content attribute actions are not escaped in html/template

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-27142 →

🎯 Affected products12

azl3 golang 1.25.7-1 on Azure Linux 3.0
azl3 golang 1.25.8-1 on Azure Linux 3.0
azl3 golang 1.25.9-1 on Azure Linux 3.0
azl3 golang 1.26.0-1 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 1.22.7-5 on CBL Mariner 2.0
cbl2 golang 1.22.7-5 on CBL-Mariner 2.0
cbl2 msft-golang 1.24.13-1 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

✅ Remediation

Security Update KBRelease Notes (Security Update)

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-27142
patchhttps://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade