What is GHSA-m8xp-vjq7-78wm?

GHSA-m8xp-vjq7-78wm is a security advisory published by GitHub Security Advisories with Medium severity. Insufficient policy enforcement in ServiceWorker in Google Chrome on prior to 148.0.7778.179...

Which CVE IDs does GHSA-m8xp-vjq7-78wm cover?

GHSA-m8xp-vjq7-78wm covers the following CVE IDs: CVE-2026-9116. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-m8xp-vjq7-78wm?

GHSA-m8xp-vjq7-78wm has a CVSS v3 base score of 4.3, published by GitHub Security Advisories.

GHSA-m8xp-vjq7-78wmMediumCVSS 4.3

Insufficient policy enforcement in ServiceWorker in Google Chrome on prior to 148.0.7778.179...

Vendor

GitHub Security Advisories

Published

May 20, 2026

Last Modified

May 20, 2026

🔗 CVE IDs covered (1)

CVE-2026-9116 →

📋 Description

Insufficient policy enforcement in ServiceWorker in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-9116
https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0841193308.html
https://issues.chromium.org/issues/497436273
https://github.com/advisories/GHSA-m8xp-vjq7-78wm