What is GHSA-j9gx-gpjh-cwc4?

GHSA-j9gx-gpjh-cwc4 is a security advisory published by GitHub Security Advisories with Critical severity. Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in...

Which CVE IDs does GHSA-j9gx-gpjh-cwc4 cover?

GHSA-j9gx-gpjh-cwc4 covers the following CVE IDs: CVE-2026-8948. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-j9gx-gpjh-cwc4?

GHSA-j9gx-gpjh-cwc4 has a CVSS v3 base score of 9.1, published by GitHub Security Advisories.

GHSA-j9gx-gpjh-cwc4CriticalCVSS 9.1

Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in...

Vendor

GitHub Security Advisories

Published

May 19, 2026

Last Modified

May 19, 2026

🔗 CVE IDs covered (1)

CVE-2026-8948 →

📋 Description

Same-origin policy bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 151.

🔗 References (5)

https://nvd.nist.gov/vuln/detail/CVE-2026-8948
https://bugzilla.mozilla.org/show_bug.cgi?id=2038803
https://www.mozilla.org/security/advisories/mfsa2026-46
https://www.mozilla.org/security/advisories/mfsa2026-50
https://github.com/advisories/GHSA-j9gx-gpjh-cwc4