What is GHSA-8v2c-7qqj-7wp7?

GHSA-8v2c-7qqj-7wp7 is a security advisory published by GitHub Security Advisories with High severity. A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue...

Which CVE IDs does GHSA-8v2c-7qqj-7wp7 cover?

GHSA-8v2c-7qqj-7wp7 covers the following CVE IDs: CVE-2026-3593. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-8v2c-7qqj-7wp7?

GHSA-8v2c-7qqj-7wp7 has a CVSS v3 base score of 7.4, published by GitHub Security Advisories.

GHSA-8v2c-7qqj-7wp7HighCVSS 7.4

A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue...

Vendor

GitHub Security Advisories

Published

May 20, 2026

Last Modified

May 20, 2026

🔗 CVE IDs covered (1)

CVE-2026-3593 →

📋 Description

A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-3593
https://downloads.isc.org/isc/bind9/9.20.23
https://downloads.isc.org/isc/bind9/9.21.22
https://kb.isc.org/docs/cve-2026-3593
https://github.com/advisories/GHSA-8v2c-7qqj-7wp7