What is GHSA-cfm3-7vpc-px47?

GHSA-cfm3-7vpc-px47 is a security advisory published by GitHub Security Advisories with Critical severity. Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code...

Which CVE IDs does GHSA-cfm3-7vpc-px47 cover?

GHSA-cfm3-7vpc-px47 covers the following CVE IDs: CVE-2026-50517. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-cfm3-7vpc-px47?

GHSA-cfm3-7vpc-px47 has a CVSS v3 base score of 9.9, published by GitHub Security Advisories.

GHSA-cfm3-7vpc-px47CriticalCVSS 9.9

Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code...

Vendor

GitHub Security Advisories

Published

July 24, 2026

Last Modified

July 24, 2026

🔗 CVE IDs covered (1)

CVE-2026-50517 →

📋 Description

Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-50517
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50517
https://github.com/advisories/GHSA-cfm3-7vpc-px47