CVE-2026-58639
Received Received - Intake

Microsoft Office SharePoint Server-Side Request Forgery

Publication date: 2026-08-11

Last updated on: 2026-08-11

Assigner: Microsoft Corporation

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

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-08-11
Last Modified
2026-08-11
Generated
2026-08-11
AI Q&A
2026-08-11
EPSS Evaluated
N/A
NVD
CVE-2026-58639
EUVD
EUVD-2026-56775

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft office_sharepoint *

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
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

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a server-side request forgery (SSRF) vulnerability in Microsoft Office SharePoint. An authorized attacker can exploit it to perform spoofing over a network by tricking the server into making unauthorized requests.

Impact Analysis

An attacker could use this to access internal resources, bypass firewalls, or impersonate legitimate services. This may lead to data breaches, unauthorized access, or further network compromise.

Compliance Impact

SSRF vulnerabilities can lead to unauthorized data access or exfiltration, violating GDPR (data protection) and HIPAA (health data privacy) by exposing sensitive information.

Mitigation Strategies

Apply the latest security updates from Microsoft for Office SharePoint as soon as possible to patch the SSRF vulnerability.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-58639. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart