CVE-2026-55051: Microsoft SharePoint Server Information Disclosure Vulnerability
Published Jul 14, 2026
·Updated
Microsoft SharePoint Server Information Disclosure Vulnerability
Other sources
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
— Microsoft
Affected Software
7 affected componentsFixes available
Microsoft SharePoint Server
Microsoft SharePoint Server Subscription Edition<16.0.19725.20434
16.0.19725.20434
Microsoft SharePoint Enterprise Server 2016<16.0.5561.1001
16.0.5561.1001
Microsoft SharePoint Server 2019<16.0.10417.20175
16.0.10417.20175
Microsoft SharePoint Server<16.0.19725.20434
Microsoft SharePoint Server=2016
Microsoft SharePoint Server=2019
Remediation
Event History
Jul 14, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:08 PM
Data Sourced
via MITRE·05:08 PM
DescriptionSeverity
Data Sourced
via NVD·06:18 PM
RemedyDescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-55051?
CVE-2026-55051 has a medium severity rating of 6.5.
2
What is CVE-2026-55051?
CVE-2026-55051 is a Microsoft SharePoint Server Information Disclosure Vulnerability that allows authorized attackers to disclose sensitive information via SSRF.
3
How do I fix CVE-2026-55051?
To fix CVE-2026-55051, apply the patch provided by Microsoft.
4
What systems are affected by CVE-2026-55051?
CVE-2026-55051 affects Microsoft SharePoint Server, SharePoint Server Subscription Edition, SharePoint Enterprise Server 2016, and SharePoint Server 2019.
5
What type of vulnerability is CVE-2026-55051?
CVE-2026-55051 is classified as a Server-side Request Forgery (SSRF) vulnerability.