High [CVE-2026-88206] Microsoft Office SharePoint Elevation of Privilege Vulnerability
This high-severity Microsoft Server advisory covers CVE-2026-88206 affecting Microsoft SharePoint Server Subscription Edition.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published
Summary
Server-side request forgery (ssrf) in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Affected product named by the advisory: Microsoft SharePoint Server Subscription Edition.
Is CVE-2026-88206 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-88206 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-88206?
Upgrade to a fixed release named by Microsoft:
- 16.0.20326.20190
Confirm against the vendor advisory before you patch.
- Microsoft SharePoint Server Subscription Edition 16.0.0 before 16.0.20326.20190
Official advisory · high-confidence parse· fetched 24 days ago·verify at source
- 16.0.20326.20190
Official advisory · high-confidence parse· fetched 24 days ago·verify at source
Mitigation
Upgrade to a fixed release: 16.0.20326.20190. That is the remediation for this advisory.
The vendor advisory may list interim mitigations or workarounds not captured here. Review it before change work.
Official advisory · high-confidence parse· fetched 24 days ago·verify at source
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