VulnSocial

CVE-2026-21226Patch(microsoft / azure_core_shared_client_library)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch microsoft azure_core_shared_client_library systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

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

microsoft CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-502

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • azure_core_shared_client_library

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 1 signal
  • General: 1 classified signal
  • Peaked 1d ago at 2 mentions (2026-02-20); latest day: 1
  • 3 total mentions across 2 days

Affected systems

Vendors
microsoft
Products
azure_core_shared_client_library

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-02-20: 2Mentions · 2026-03-29: 1Patch / Workaround · 2026-02-20: 1Patch / Workaround · 2026-03-29: 1Technical Details · 2026-03-29: 102-2003-29
Signal classification2 categories
Patch
266.7%
General
133.3%
Referenced assets5 URLs
Classification over time
DateTotalLabels
2026-02-202
General1Patch1
2026-03-291
Patch1
Full discourse3 posts
  • White Rabbitx@TheRabbitPy
    Patch

    ☁️ CVE-2026-21226 (Azure Core Python): 7.5 CVSS RCE via deserialization of untrusted data in shared client. Patch: Update Azure SDK https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21226 https://nvd.nist.gov/vuln/detail/CVE-2026-21226 https://github.com/Azure/azure-sdk-for-python/security/advisories

    Post summary

    Microsoft announced CVE‑2026‑21226, a deserialization‑based RCE with CVSS 7.5 in Azure Core Python, and recommends updating the Azure SDK.

    1000046
    492 followersView on X
  • Ferramentas Linux@Cezar_H_Linux
    General

    Just published a deep dive on the latest #Fedora 42 security advisory for Azure CLI (CVE-2026-21226). If you're using Azure tools on Fedora, you need to see this. Read more: 👉 https://tinyurl.com/2s3e5ehr #Security https://t.co/kUBqKfODxP

    Post summary

    The tweet points to a deep dive on Fedora 42's Azure CLI advisory (CVE-2026-21226) but does not provide technical or exploit details.

    0000042
    1.3K followersView on X
  • ThreatCluster@threatcluster
    Patch

    CVE-2026-21226: Fedora 42 updates python-azure-core to 1.38.0 and Azure CLI to 2.68.0-2 to fix a critical Azure Core library flaw. Patches released Feb 9 and Feb 11 2026, update promptly. https://threatcluster.io/cluster/critical-update-for-azure-core-and-cli-to-address-cve-2026-2-65b1dad8

    Post summary

    The post announces timely patch releases for CVE-2026-21226, focusing on updating affected components in Fedora 42 and Azure CLI.

    0000019
    71 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appmicrosoftazure_core_shared_client_library-python-

Explore more

Back to dashboardmicrosoft CVEsazure_core_shared_client_library vulnerabilities