CVE-2026-12027

CRITICAL

Google Chrome < 149.0.7827.115 - Sandbox Escape via Headless Inappropriate Implementation

Title source: llm

Description

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)

References (2)

Core 2

Core References

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725236.html

https://issues.chromium.org/issues/517517155

Scores

CVSS v3 9.6

EPSS 0.0022

EPSS Percentile 12.8%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-250 CWE-693

Status published

Products (2)

google/chrome < 149.0.7827.114

Google/Chrome 149.0.7827.115

Published Jun 11, 2026

Tracked Since Jun 12, 2026