What is GHSA-v653-4rmx-34gj?

GHSA-v653-4rmx-34gj is a security advisory published by GitHub Security Advisories with High severity. Authorization bypass through user-controlled key in Microsoft Exchange Server allows an...

Which CVE IDs does GHSA-v653-4rmx-34gj cover?

GHSA-v653-4rmx-34gj covers the following CVE IDs: CVE-2026-118150. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-v653-4rmx-34gj?

GHSA-v653-4rmx-34gj has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-v653-4rmx-34gjHighCVSS 8.8

Authorization bypass through user-controlled key in Microsoft Exchange Server allows an...

Vendor

GitHub Security Advisories

Published

November 10, 2026

Last Modified

November 10, 2026

🔗 CVE IDs covered (1)

CVE-2026-118150 →

📋 Description

Authorization bypass through user-controlled key in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-118150
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118150
https://github.com/advisories/GHSA-v653-4rmx-34gj