CVE-2026-21226

highpriority · track · 0EPSS 0.009 · 61 %ileDEEUNLRUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.95% (61st) EPSS
CVSS 7.5 · high
Is it mine?
12 products
Check your exposure
Who says so?
9 sources
cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

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

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedpython311-azure-core-0:1.30.0-150400.11.6.1.noarch as component of SUSE Linux Enterprise Module for Public Cloud 15 SP4suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython311-azure-core-0:1.30.0-150400.11.6.1.noarch as component of SUSE Linux Enterprise Module for Public Cloud 15 SP5suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython311-azure-core-0:1.30.0-150400.11.6.1.noarch as component of SUSE Linux Enterprise Module for Public Cloud 15 SP6suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython311-azure-core-0:1.30.0-150400.11.6.1.noarch as component of SUSE Linux Enterprise Module for Public Cloud 15 SP7suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython311-azure-core-0:1.30.0-150400.11.6.1.noarch as component of openSUSE Leap 15.6suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython313-azure-core-0:1.32.0-160000.3.1.noarch as component of SUSE Linux Enterprise High Availability Extension 16.0suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython313-azure-core-0:1.32.0-160000.3.1.noarch as component of SUSE Linux Enterprise Server for SAP applications 16.0suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • FixedAzure Core shared client library for Pythonmsrc_csaf

    1.38.0:Security Update:https://github.com/Azure/azure-sdk-for-python/blob/main/sdk/core/azure-core/CHANGELOG.md#1380-2026-01-08

    https://github.com/Azure/azure-sdk-for-python/blob/main/sdk/core/azure-core/CHANGELOG.md#1380-2026-01-08
  • Fixedpython311-azure-core-0:1.38.0-2.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython311-azure-core-0:1.38.0-2.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython311-azure-core-0:1.38.0-2.1.s390x as component of openSUSE Tumbleweedsuse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython311-azure-core-0:1.38.0-2.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython312-azure-core-0:1.38.0-2.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython312-azure-core-0:1.38.0-2.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython312-azure-core-0:1.38.0-2.1.s390x as component of openSUSE Tumbleweedsuse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython312-azure-core-0:1.38.0-2.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython313-azure-core-0:1.38.0-2.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython313-azure-core-0:1.38.0-2.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython313-azure-core-0:1.38.0-2.1.s390x as component of openSUSE Tumbleweedsuse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython313-azure-core-0:1.38.0-2.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

  • Fixedpython313-azure-core-0:1.32.0-160000.3.1.noarch as component of openSUSE Leap 16.0suse_csaf

    To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

02

cvss

Technical severity, 0–10. One row per scoring source.

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highAV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU
v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU
v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 1.6 · impact 5.9
v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV
v3.16.9mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · SUSE Product Security
v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · NCSC-NL NL
v3.17.5highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USCWE-502USCWE-502USCWE-502USCWE-502US
05

affected products (12)

Products and version ranges known to be affected.

06

advisories (12)

Vendor and ecosystem advisories describing this.

  • NCSC-2026-0009Kwetsbaarheden verholpen in Microsoft AzureNL2026-01-13csaf · ncsc_nlNL

    Microsoft heeft kwetsbaarheden verholpen in diverse Azure-componenten.

  • SUSE-SU-2026:0476-1Security update for python-azure-core2026-02-12csaf · suse_csafDE

    Security update for python-azure-core

  • SUSE-SU-2026:20617-1Security update for python-azure-core2026-03-01csaf · suse_csafDE

    Security update for python-azure-core

  • SUSE-SU-2026:20621-1Security update for python-azure-core2026-03-01csaf · suse_csafDE

    Security update for python-azure-core

  • WID-SEC-W-2026-0080Microsoft Azure: Mehrere SchwachstellenDeutsch2026-01-13csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Microsoft Azure und Microsoft Windows Admin Center ausnutzen, um seine Privilegien zu erhöhen, und um beliebigen Programmcode auszuführen.

  • WID-SEC-W-2026-0328IBM App Connect Enterprise Certified Container: Mehrere SchwachstellenDeutsch2026-02-05csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in IBM App Connect Enterprise Certified Container ausnutzen, um beliebigen Programmcode auszuführen, einen Denial-of-Service-Zustand zu verursachen, die Authentifizierung zu umgehen, vertrauliche Informationen zu manipulieren oder offenzulegen.

  • WID-SEC-W-2026-2933Splunk SOAR: Mehrere SchwachstellenDeutsch2026-08-19csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Splunk SOAR ausnutzen, um Sicherheitsvorkehrungen zu umgehen, um Informationen offenzulegen, um Dateien zu manipulieren, um einen SQL-Injection Angriff durchzuführen, um einen Cross-Site Scripting Angriff durchzuführen, und um beliebigen Programmcode auszuführen.

  • msrc_CVE-2026-21226Azure Core shared client library for Python Remote Code Execution Vulnerability2026-01-13csaf · msrc_csafUS

    To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

  • openSUSE-SU-2026:10161-1python311-azure-core-1.38.0-2.1 on GA media2026-02-06csaf · suse_csafDE

    python311-azure-core-1.38.0-2.1 on GA media

  • openSUSE-SU-2026:20292-1Security update for python-azure-core2026-03-01csaf · suse_csafDE

    Security update for python-azure-core

  • GHSA-jm66-cg57-jjv5Azure Core is vulnerable to deserialization of untrusted data2026-01-13ghsa · osvUS

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

  • PYSEC-2026-1208Azure Core is vulnerable to deserialization of untrusted data2026-07-07vendor · osvUS

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

07

also known as (8)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bduosvcert_bundmsrc_csafncsc_nlnvdsuse_csafNVDCVE.orgMITRE
published 2026-01-13modified 2026-06-17
09

references (4)

External citations — patches, advisories, analysis.

scry

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