CVE-2026-69409 Microsoft Office SharePoint Information Disclosure Vulnerability
An authorized attacker can disclose information over a network due to execution with unnecessary privileges in Microsoft SharePoint.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-69409?
CVE-2026-69409 is a medium-severity vulnerability in Microsoft Sharepoint Server, published on 8 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Execution with unnecessary privileges in Microsoft Office SharePoint allows an authorized attacker to disclose information over a network.
Weakness: CWE-250
Which versions are affected by CVE-2026-69409?
It affects 1 product.
Products include Microsoft Sharepoint Server.
How do I fix CVE-2026-69409?
No fix has been published for CVE-2026-69409 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-69409 being exploited?
There is no known exploitation of CVE-2026-69409 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Sharepoint Server
- CVE-2026-50522 Microsoft SharePoint Deserialization of Untrusted Data Vulnerability
- CVE-2026-58644 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2026-20963 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2025-53770 Microsoft SharePoint Deserialization of Untrusted Data
- CVE-2023-29357 Microsoft SharePoint Server Privilege Escalation
Sources
Also known as GHSA-4w3q-g25g-r489.