What is GHSA-9c3c-227q-3j67?

GHSA-9c3c-227q-3j67 is a security advisory published by GitHub Security Advisories with Medium severity. X.509 name constraint bypass via the Subject Common Name when treated as a DNS-type name. A...

Which CVE IDs does GHSA-9c3c-227q-3j67 cover?

GHSA-9c3c-227q-3j67 covers the following CVE IDs: CVE-2026-6731. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-9c3c-227q-3j67?

GHSA-9c3c-227q-3j67 has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-9c3c-227q-3j67MediumCVSS 7.5

X.509 name constraint bypass via the Subject Common Name when treated as a DNS-type name. A...

Vendor

GitHub Security Advisories

Published

June 25, 2026

Last Modified

June 27, 2026

🔗 CVE IDs covered (1)

CVE-2026-6731 →

📋 Description

X.509 name constraint bypass via the Subject Common Name when treated as a DNS-type name. A certificate whose Subject CN violates an issuing CA's DNS name constraints could be accepted.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-6731
https://github.com/wolfSSL/wolfssl/pull/10223
https://www.wolfssl.com/docs/security-vulnerabilities
https://github.com/advisories/GHSA-9c3c-227q-3j67