CVE-2026-12027

Inappropriate implementation in Headless in Google Chrome prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1

9.6CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-25)

CWEs

CWE-250, CWE-693

Published

2026-06-11

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• google:chrome

References

• https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725236.html
• https://issues.chromium.org/issues/517517155

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