cve 2026 21226

About this tag
CVE-2026-21226 is a high-severity remote code execution vulnerability in the Azure Core shared client library for Python, part of the Azure SDK for Python. The flaw involves deserialization and could allow an authorized remote attacker to execute arbitrary code in affected Python processes. Microsoft has acknowledged the vulnerability and issued patches, but public technical details remain limited. The vulnerability is tracked by Microsoft and independent sources, with mitigation requiring updating the azure-core library to version 1.38.0 or later. This tag covers discussions on the vulnerability's background, risk assessment, and remediation steps for Azure Python SDK users.

  1. CVE-2026-21226: High Severity Azure Core Deserialization RCE in Python SDK

    Microsoft’s public tracking and ecosystem signals identify the remote code execution (RCE) risk in the Azure SDK for Python as CVE‑2026‑21226 — a deserialization vulnerability in the azure‑core shared client library that Microsoft and multiple independent trackers classify as high severity and...
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    • azure core azure sdk python cve 2026 21226 deserialization vulnerability
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    • Forum: Security Alerts

  2. Understanding CVE-2026-21226: Azure Core Python RCE Risk and Mitigation

    A Microsoft Security Response Center (MSRC) entry now lists CVE-2026-21226 — a reported remote code execution (RCE) class vulnerability in the Azure Core shared client library for Python — but public technical detail is limited and the vendor’s own “confidence” metric indicates the disclosure is...
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    • azure core cve 2026 21226 python security vendor advisories
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    • Forum: Security Alerts