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)
Published: 2026-06-11
Score: 9.6 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-6344-1 chromium security update
History

Mon, 22 Jun 2026 12:15:00 +0000

Type Values Removed Values Added
Title Headless Mode Sandbox Escape in Google Chrome chromium-browser: chromium-browser: Insufficient policy enforcement  Headless
Weaknesses CWE-266
References
Metrics threat_severity

None

threat_severity

Important


Sat, 13 Jun 2026 00:30:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows

Fri, 12 Jun 2026 19:15:00 +0000

Type Values Removed Values Added
Title Headless Mode Sandbox Escape in Google Chrome

Fri, 12 Jun 2026 17:30:00 +0000

Type Values Removed Values Added
Title Inappropriate Headless implementation may allow sandbox escape in Chrome
Weaknesses CWE-862

Fri, 12 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-693
Metrics cvssV3_1

{'score': 9.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 11 Jun 2026 23:00:00 +0000

Type Values Removed Values Added
Title Inappropriate Headless implementation may allow sandbox escape in Chrome
First Time appeared Google
Google chrome
Weaknesses CWE-250
CWE-862
Vendors & Products Google
Google chrome

Thu, 11 Jun 2026 21:30:00 +0000

Type Values Removed Values Added
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

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-06-12T13:56:43.514Z

Reserved: 2026-06-11T18:16:07.458Z

Link: CVE-2026-12027

cve-icon Vulnrichment

Updated: 2026-06-12T13:55:19.492Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-11T22:16:55.253

Modified: 2026-06-13T00:26:43.830

Link: CVE-2026-12027

cve-icon Redhat

Severity : Important

Publid Date: 2026-06-11T20:48:11Z

Links: CVE-2026-12027 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-22T13:30:16Z

Weaknesses