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Microsoft Security Response CenterCVE-2026-27142

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

Mariner

Read the vendor bulletin Get alerts for azl3 golang 1.25.8-1 on Azure Linux
7.5CVSS out of 10High severity
Scope

What the vendor says is affected

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

What the vendor recommends

Release Notes

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.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.

Vulnerabilities

CVEs named in this advisory

CVE-2026-27142View CVSS, KEV, EPSS, and threat context
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