What is GHSA-8q78-vm89-wh64?

GHSA-8q78-vm89-wh64 is a security advisory published by GitHub Security Advisories with Medium severity. Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to...

Which CVE IDs does GHSA-8q78-vm89-wh64 cover?

GHSA-8q78-vm89-wh64 covers the following CVE IDs: CVE-2026-66313. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-8q78-vm89-wh64?

GHSA-8q78-vm89-wh64 has a CVSS v3 base score of 6.8, published by GitHub Security Advisories.

GHSA-8q78-vm89-wh64MediumCVSS 6.8

Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to...

Vendor

GitHub Security Advisories

Published

August 4, 2026

Last Modified

August 4, 2026

🔗 CVE IDs covered (1)

CVE-2026-66313 →

📋 Description

Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering locally.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-66313
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66313
https://github.com/advisories/GHSA-8q78-vm89-wh64