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Microsoft Security Response CenterCVE-2026-72649

Deserialization of Untrusted Data in Elasticsearch Leading to Remote Code Execution

HighVendor CVSS 8.8 / 10 1 CVE Published Sep 3, 2026 at 1:04 AM UTC

Summary

Mariner

Products covered

  • azl3 rubygem-elasticsearch 8.9.0-1 on Azure Linux 3.0

Remediation

See the Microsoft Security Update Guide for the update that applies to your product.

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

  3. Confirmed at the source

    Our collector saw this advisory during a later source check.