PYSEC-2026-1208
Azure Core is vulnerable to deserialization of untrusted data
At a glance
- Published
- Updated
- CVE
- CVE-2026-21226
- Aliases
- GHSA-jm66-cg57-jjv5
- CVSS_V3
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
Deserialization of untrusted data in Azure Core shared client library for Python allows an authorized attacker to execute code over a network.
Affected packages
| Package | Versions |
|---|---|
| PyPI · azure-core | introduced 0, fixed 1.38.0 |
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
- https://pypi.org/project/azure-core PACKAGE
- https://github.com/advisories/GHSA-jm66-cg57-jjv5 ADVISORY
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — PyPA Advisory Database |