CVE-2026-70298: Microsoft Office SharePoint Information Disclosure Vulnerability

Published Oct 13, 2026
·
Updated

Improper limitation of a pathname to a restricted directory ('path traversal') in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.

Other sources

Microsoft Office SharePoint Information Disclosure Vulnerability

— Microsoft

Affected Software

1 affected componentFixes available
Microsoft SharePoint Server Subscription Edition<16.0.20326.20190
16.0.20326.20190

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 16.0.20326.20190Patch KB5002927

Event History

Oct 13, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·07:00 PM
Data Sourced
via MITRE·07:00 PM
DescriptionSeverity

Frequently Asked Questions

1

Who can exploit this issue?

An attacker must be authorized to access the affected SharePoint Server Subscription Edition instance and able to reach it over the network. The provided information does not indicate that unauthenticated attackers can exploit it.

2

What is the likely impact if exploitation succeeds?

Successful exploitation can disclose information. The supplied severity vector indicates high confidentiality impact, with no stated integrity or availability impact.

3

What deployment scope is identified as affected?

The affected software identified in the provided data is Microsoft SharePoint Server Subscription Edition. No information is provided about specific builds, configurations, or whether default installations are affected.

Contact

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