What is GHSA-w5cc-jcwc-q4f8?

GHSA-w5cc-jcwc-q4f8 is a security advisory published by GitHub Security Advisories with Critical severity. Server-side request forgery (ssrf) in Microsoft Exchange Online allows an unauthorized attacker...

Which CVE IDs does GHSA-w5cc-jcwc-q4f8 cover?

GHSA-w5cc-jcwc-q4f8 covers the following CVE IDs: CVE-2026-65801. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-w5cc-jcwc-q4f8?

GHSA-w5cc-jcwc-q4f8 has a CVSS v3 base score of 10.0, published by GitHub Security Advisories.

GHSA-w5cc-jcwc-q4f8CriticalCVSS 10.0

Server-side request forgery (ssrf) in Microsoft Exchange Online allows an unauthorized attacker...

Vendor

GitHub Security Advisories

Published

August 21, 2026

Last Modified

August 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-65801 →

📋 Description

Server-side request forgery (ssrf) in Microsoft Exchange Online allows an unauthorized attacker to elevate privileges over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-65801
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65801
https://github.com/advisories/GHSA-w5cc-jcwc-q4f8