What is GHSA-4394-9r85-5r5g?

GHSA-4394-9r85-5r5g is a security advisory published by GitHub Security Advisories with High severity. Improper verification of cryptographic signature in Microsoft Office SharePoint allows an...

Which CVE IDs does GHSA-4394-9r85-5r5g cover?

GHSA-4394-9r85-5r5g covers the following CVE IDs: CVE-2026-102866. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-4394-9r85-5r5g?

GHSA-4394-9r85-5r5g has a CVSS v3 base score of 8.1, published by GitHub Security Advisories.

GHSA-4394-9r85-5r5gHighCVSS 8.1

Improper verification of cryptographic signature in Microsoft Office SharePoint allows an...

Vendor

GitHub Security Advisories

Published

October 13, 2026

Last Modified

October 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-102866 →

📋 Description

Improper verification of cryptographic signature in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-102866
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-102866
https://github.com/advisories/GHSA-4394-9r85-5r5g