GitHub Advisoryadvisory · PyPI
GHSA-jm66-cg57-jjv5 Azure Core is vulnerable to deserialization of untrusted data
HIGH
Official page ↗
- Aliases
- CVE-2026-21226
- Ecosystem
- PyPI
- Packages
- azure-core
- Severity
- High
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-502
- Reviewed
- 2026-01-13
Affected packages
• PyPI azure-core: < 1.38.0 → fixed in 1.38.0
Description
Deserialization of untrusted data in Azure Core shared client library for Python allows an authorized attacker to execute code over a network.
Related
Alias · CVE (1)
- CVE-2026-21226 Deserialization of untrusted data in Azure Core shared client library for Python allows an authorized attacker to execute code over a… vulnerability
Weakness · CWE (1)
- CWE-502 Deserialization of Untrusted Data weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-21226 advisory
- https://github.com/Azure/azure-sdk-for-python package
- https://github.com/Azure/azure-sdk-for-python/blob/6d2e6431ea0991861640e449e51e894247a7771a/sdk/core/azure-core/CHANGELOG.md#1380-2026-01-12 web
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21226 web