CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2026-21226
High (7.5) in microsoft azure core shared client library. EPSS 0.9% chance of exploitation in the next 30 days. Fixed in azure-core 1.38.0.
Deserialization of untrusted data in Azure Core shared client library for Python allows an authorized attacker to execute code over a network.
Severity
- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-31)
- CWE
- CWE-502
- Published
- Modified
- Record from
- the NVD, synced
Affected
- microsoft:azure_core_shared_client_library
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-jm66-cg57-jjv5 | PyPI | azure-core | <1.38.0 | 1.38.0 |
| PYSEC-2026-1208 | PyPI | azure-core | <1.38.0 | 1.38.0 |