What is GHSA-jjmx-rwxc-vwh4?

GHSA-jjmx-rwxc-vwh4 is a security advisory published by GitHub Security Advisories with Critical severity. Improper neutralization of special elements used in a command ('command injection') in M365...

Which CVE IDs does GHSA-jjmx-rwxc-vwh4 cover?

GHSA-jjmx-rwxc-vwh4 covers the following CVE IDs: CVE-2026-85885. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-jjmx-rwxc-vwh4?

GHSA-jjmx-rwxc-vwh4 has a CVSS v3 base score of 9.9, published by GitHub Security Advisories.

GHSA-jjmx-rwxc-vwh4CriticalCVSS 9.9

Improper neutralization of special elements used in a command ('command injection') in M365...

Vendor

GitHub Security Advisories

Published

September 18, 2026

Last Modified

September 18, 2026

🔗 CVE IDs covered (1)

CVE-2026-85885 →

📋 Description

Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an authorized attacker to elevate privileges over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-85885
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85885
https://github.com/advisories/GHSA-jjmx-rwxc-vwh4