CVE-2026-55051

Analyzed Analyzed - Analysis Complete

Microsoft Office SharePoint Server-Side Request Forgery

Publication date: 2026-07-14

Last updated on: 2026-07-16

Assigner: Microsoft Corporation

Description

Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-07-14

Last Modified

2026-07-16

Generated

2026-08-04

AI Q&A

2026-07-15

EPSS Evaluated

2026-08-02

NVD

CVE-2026-55051

EUVD

EUVD-2026-44208

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	sharepoint_server	2019
microsoft	sharepoint_server	2016
microsoft	sharepoint_server	to 16.0.19725.20434 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-918	The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Attack-Flow Graph

Executive Summary

This is a server-side request forgery (SSRF) vulnerability in Microsoft Office SharePoint. It allows an authorized attacker to make unauthorized requests from the server to other systems over a network, potentially disclosing sensitive information.

Impact Analysis

An attacker could exploit this to access internal network resources, steal sensitive data, or perform unauthorized actions on behalf of the SharePoint server. This may lead to data breaches or further network compromise.

Compliance Impact

This vulnerability could lead to unauthorized disclosure of personal or sensitive data, violating GDPR and HIPAA requirements. Organizations may face legal penalties, fines, or reputational damage due to non-compliance.

Mitigation Strategies

Apply the latest security updates from Microsoft for SharePoint as soon as possible to patch the SSRF vulnerability. Monitor network traffic for unusual requests originating from SharePoint servers and restrict unauthorized outbound connections from SharePoint to internal or external systems.

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