Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
[POC] GHSA-3whf-vgf2-9w6g — CVE-2026-50522
Microsoft SharePoint CVE-2026-50522
[POC] GHSA-652q-gvq3-74qv — CVE-2026-50522
CVE-2026-50522 PoC
[POC] CVE-2026-50522 — CVE-2026-50522
CVE-2026-50522 - Draft
PoC: CVE-2026-50522
Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
PoC: sharepoint-2026-poc
PoC, IOCs, and detection logic for the SharePoint /_trust WS-Federation BinaryFormatter deserialization chain. Lab reconstruction covering unauthenticated RCE, in-process machine key theft, and the artifacts each variant leaves behind. SharePoint 2016, 2019, and Subscription Edition. CVE-2026-50522, CVE-2026-45659, CVE-2026-56164, CVE-2026-58644.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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