CVE-2026-6300

Use after free in CSS in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

Affected

Google · Chrome

CVSS v3.1 CNA

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.41% chance of exploitation in the next 30 days, 34th percentile

Published

2026-04-15

Updated

2026-05-26

Proof-of-concept exploits (1)

• notthemystery/CVE-2026-6300-PoC0★ · 2026-07-08

Security advisories

• https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_15.html

References

• CVE Record
• NVD entry

Related

• CVE-2026-20700