CVE-2026-20958: CWE-918: Server-Side Request Forgery (SSRF) in Microsoft Microsoft SharePoint Enterprise Server 2016
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-20958) involves SSRF in Microsoft SharePoint Enterprise Server 2016 version 16.0.0. An authorized attacker can exploit this flaw to induce the server to send crafted requests, which may lead to information disclosure across the network. The CVSS 3.1 vector indicates network attack vector, low attack complexity, requiring privileges, no user interaction, and impacts confidentiality and integrity with no impact on availability. The vulnerability is confirmed published and a patch is available to remediate it.
Potential Impact
The impact of this vulnerability is limited to information disclosure and integrity loss, without affecting system availability. An attacker with authorized access can leverage SSRF to access internal resources or sensitive information that the SharePoint server can reach, potentially leading to unauthorized data exposure or manipulation within the scope of the compromised server's network access.
Mitigation Recommendations
A patch is available for this vulnerability and should be applied promptly to affected Microsoft SharePoint Enterprise Server 2016 installations. Since this is not a cloud service, administrators must manually update their systems. There are no indications that the vulnerability is already mitigated or that no action is required.
CVE-2026-20958: CWE-918: Server-Side Request Forgery (SSRF) in Microsoft Microsoft SharePoint Enterprise Server 2016
Description
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-20958) involves SSRF in Microsoft SharePoint Enterprise Server 2016 version 16.0.0. An authorized attacker can exploit this flaw to induce the server to send crafted requests, which may lead to information disclosure across the network. The CVSS 3.1 vector indicates network attack vector, low attack complexity, requiring privileges, no user interaction, and impacts confidentiality and integrity with no impact on availability. The vulnerability is confirmed published and a patch is available to remediate it.
Potential Impact
The impact of this vulnerability is limited to information disclosure and integrity loss, without affecting system availability. An attacker with authorized access can leverage SSRF to access internal resources or sensitive information that the SharePoint server can reach, potentially leading to unauthorized data exposure or manipulation within the scope of the compromised server's network access.
Mitigation Recommendations
A patch is available for this vulnerability and should be applied promptly to affected Microsoft SharePoint Enterprise Server 2016 installations. Since this is not a cloud service, administrators must manually update their systems. There are no indications that the vulnerability is already mitigated or that no action is required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-12-04T20:04:16.340Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69668ae6a60475309f9ae265
Added to database: 1/13/2026, 6:11:50 PM
Last enriched: 4/3/2026, 12:52:57 PM
Last updated: 5/9/2026, 9:28:51 PM
Views: 101
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