CVE-2026-88094

highpriority · track · 32EPSS 0.008 · 57 %ileFRNLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.82% (57th) EPSS

CVSS 8.1 · high

Is it mine?

16 products

Check your exposure

Who says so?

3 sources

msrc_csaf · ncsc_nl · certfr

EPSS · scored 2026-10-27

Improper neutralization of special elements in output used by a downstream component ('injection') in Azure Storage Library allows an authorized attacker to elevate privileges over a network.

remediations

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

A vendor fix is available.

Fixedazure-storage-blob-batchmsrc_csaf
12.31.2:Security Update:https://github.com/Azure/azure-sdk-for-java/blob/main/sdk/storage/azure-storage-blob-batch/CHANGELOG.md#12312-2026-09-15
https://github.com/Azure/azure-sdk-for-java/blob/main/sdk/storage/azure-storage-blob-batch/CHANGELOG.md#12312-2026-09-15

cvss

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

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Hprimary · secure@microsoft.com USexploitability 2.8 · impact 5.2

v3.17.4highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

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

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

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-74USCWE-74USCWE-74US

affected products (16)

Products and version ranges known to be affected.

Microsoft azure-storage-blob-batchall versionsfixedmsrc_csafUS
Microsoft azure-storage-blob-batch< 12.31.2msrc_csafUS
Microsoft Arc Enabled Servers - Azure Connected Machine Agent≤ vers:unknown/*ncsc_nlNL
Microsoft Azure≤ vers:unknown/*ncsc_nlNL
Microsoft Azure API Center≤ vers:unknown/*ncsc_nlNL
Microsoft Azure CLI≤ vers:unknown/*ncsc_nlNL
Microsoft Azure Container Storage enabled by Azure Arc≤ vers:unknown/*ncsc_nlNL
Microsoft Azure CycleCloud 8.9.1≤ vers:unknown/*ncsc_nlNL
Microsoft Azure CycleCloud 8.9.2≤ vers:unknown/*ncsc_nlNL
Microsoft Azure DevOps CLI Extension≤ vers:unknown/*ncsc_nlNL
Microsoft Azure Event Grid System≤ vers:unknown/*ncsc_nlNL
Microsoft Azure Key Vault Client SDK≤ vers:unknown/*ncsc_nlNL
Microsoft Azure SRE Agent≤ vers:unknown/*ncsc_nlNL
Microsoft Azure Storage Blobs client library for Java≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft Bookings≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft Partner Center≤ vers:unknown/*ncsc_nlNL

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2026-0421Kwetsbaarheden verholpen in Microsoft AzureNL2026-10-13csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in diverse Azure componenten, zoals Key Vault, DevOps, API center en Storage.
msrc_CVE-2026-88094Azure Storage Library Elevation of Privilege Vulnerability2026-10-13csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
CERTFR-2026-AVI-1315Multiples vulnérabilités dans Microsoft AzureFrançais2026-10-14vendor · certfrFR

sources

Which sources assert this record, and when.

msrc_csaf ncsc_nl certfr NVD CVE.org MITRE

published 2026-10-13modified 2026-10-16

references (1) nvd

External citations — patches, advisories, analysis.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88094

scry

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