What is GHSA-gxj4-87qm-hmc3?

GHSA-gxj4-87qm-hmc3 is a security advisory published by GitHub Security Advisories with unknown severity. Incomplete X.509 implementation in GnuTLS v3.8.13 allows attackers controlling a subordinate...

Which CVE IDs does GHSA-gxj4-87qm-hmc3 cover?

GHSA-gxj4-87qm-hmc3 covers the following CVE IDs: CVE-2026-88648. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-gxj4-87qm-hmc3unknown

Incomplete X.509 implementation in GnuTLS v3.8.13 allows attackers controlling a subordinate...

Vendor

GitHub Security Advisories

Published

October 8, 2026

Last Modified

October 8, 2026

🔗 CVE IDs covered (1)

CVE-2026-88648 →

📋 Description

Incomplete X.509 implementation in GnuTLS v3.8.13 allows attackers controlling a subordinate Certificate Authority to bypass cross-domain PKI restrictions and issue unauthorized certificates.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-88648
https://gist.github.com/lkloliver/1f2a97cb8d0b31aa27b6bd0354358d7d
https://www.rfc-editor.org/rfc/rfc5280#section-4.2.1.10
https://www.rfc-editor.org/rfc/rfc5280#section-6.1.4
https://github.com/advisories/GHSA-gxj4-87qm-hmc3