What is GHSA-jm66-cg57-jjv5?

GHSA-jm66-cg57-jjv5 is a security advisory published by GitHub Security Advisories with High severity. Azure Core is vulnerable to deserialization of untrusted data

Which CVE IDs does GHSA-jm66-cg57-jjv5 cover?

GHSA-jm66-cg57-jjv5 covers the following CVE IDs: CVE-2026-21226. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-jm66-cg57-jjv5?

GHSA-jm66-cg57-jjv5 has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

Which products are affected by GHSA-jm66-cg57-jjv5?

GHSA-jm66-cg57-jjv5 affects 1 product, including: pip/azure-core:\u003c 1.38.0.

GHSA-jm66-cg57-jjv5HighCVSS 7.5

Azure Core is vulnerable to deserialization of untrusted data

Vendor

GitHub Security Advisories

Published

January 13, 2026

Last Modified

January 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-21226 →

📋 Description

Deserialization of untrusted data in Azure Core shared client library for Python allows an authorized attacker to execute code over a network.

🎯 Affected products1

pip/azure-core:< 1.38.0

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-21226
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21226
https://github.com/Azure/azure-sdk-for-python/blob/6d2e6431ea0991861640e449e51e894247a7771a/sdk/core/azure-core/CHANGELOG.md#1380-2026-01-12
https://github.com/advisories/GHSA-jm66-cg57-jjv5