What is GHSA-q8hj-9894-q2w9?

GHSA-q8hj-9894-q2w9 is a security advisory published by GitHub Security Advisories with High severity. Double free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to...

Which CVE IDs does GHSA-q8hj-9894-q2w9 cover?

GHSA-q8hj-9894-q2w9 covers the following CVE IDs: CVE-2026-62889. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-q8hj-9894-q2w9?

GHSA-q8hj-9894-q2w9 has a CVSS v3 base score of 8.1, published by GitHub Security Advisories.

GHSA-q8hj-9894-q2w9HighCVSS 8.1

Double free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to...

Vendor

GitHub Security Advisories

Published

August 11, 2026

Last Modified

August 11, 2026

🔗 CVE IDs covered (1)

CVE-2026-62889 →

📋 Description

Double free in Windows Secure Socket Tunneling Protocol (SSTP) allows an unauthorized attacker to execute code over a network.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-62889
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62889
https://github.com/advisories/GHSA-q8hj-9894-q2w9