What is GHSA-cgq2-gvwr-85hj?

GHSA-cgq2-gvwr-85hj is a security advisory published by GitHub Security Advisories with Critical severity. Use after free in Chromecast in Google Chrome prior to 152.0.7977.65 allowed a remote attacker...

Which CVE IDs does GHSA-cgq2-gvwr-85hj cover?

GHSA-cgq2-gvwr-85hj covers the following CVE IDs: CVE-2026-78939. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-cgq2-gvwr-85hj?

GHSA-cgq2-gvwr-85hj has a CVSS v3 base score of 9.6, published by GitHub Security Advisories.

GHSA-cgq2-gvwr-85hjCriticalCVSS 9.6

Use after free in Chromecast in Google Chrome prior to 152.0.7977.65 allowed a remote attacker...

Vendor

GitHub Security Advisories

Published

August 25, 2026

Last Modified

August 26, 2026

🔗 CVE IDs covered (1)

CVE-2026-78939 →

📋 Description

Use after free in Chromecast in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-78939
https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html
https://issues.chromium.org/issues/513261751
https://github.com/advisories/GHSA-cgq2-gvwr-85hj