azure/azure-sdk-for-python · Security
Azure Core is vulnerable to deserialization of untrusted data
- GHSA ID
- GHSA-jm66-cg57-jjv5
- CVE ID
- CVE-2026-21226
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 7.5 · 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.
CWEs
- CWE-502 · Deserialization of Untrusted Data
References
- 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 ↗