CVE-2026-12027 | Inappropriate implementation in Headless in Google Chrome pr… | CVSS 9.6 CRITICAL

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)

Metadata

CVE ID: CVE-2026-12027
State: PUBLISHED
Assigner: Chrome
Reserved: 2026-06-11 18:16 UTC
Published: 2026-06-11 20:48 UTC
Last updated: 2026-06-12 13:56 UTC
Primary CWE: CWE-693
CWE-693 Protection Mechanism Failure
Vendor / Product: Google / Chrome
Sources: cve.org · NVD

Severity & Metrics

9.6 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
Google	Chrome	—	149.0.7827.115 < 149.0.7827.115

Weakness (CWE)

CWE	Source	Description
—	cna	Insufficient policy enforcement
CWE-250	adp	CWE-250 Execution with Unnecessary Privileges
CWE-693	adp	CWE-693 Protection Mechanism Failure

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.6	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

References (2)