What is GHSA-wjjw-gh8j-ggrg?

GHSA-wjjw-gh8j-ggrg is a security advisory published by GitHub Security Advisories with High severity. A improper certificate validation vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS...

Which CVE IDs does GHSA-wjjw-gh8j-ggrg cover?

GHSA-wjjw-gh8j-ggrg covers the following CVE IDs: CVE-2026-121528. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-wjjw-gh8j-ggrg?

GHSA-wjjw-gh8j-ggrg has a CVSS v3 base score of 8.1, published by GitHub Security Advisories.

GHSA-wjjw-gh8j-ggrgHighCVSS 8.1

A improper certificate validation vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS...

Vendor

GitHub Security Advisories

Published

November 12, 2026

Last Modified

November 12, 2026

🔗 CVE IDs covered (1)

CVE-2026-121528 →

📋 Description

A improper certificate validation vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2.0 through 7.2.13 may allow a remote and unauthenticated attacker to perform a Man-in-the-Middle attack on the communication channel between the SSLVPN web portal and the backend destination website.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-121528
https://fortiguard.fortinet.com/psirt/FG-IR-26-193
https://github.com/advisories/GHSA-wjjw-gh8j-ggrg