CVE & CISA-KEV Catalog

CVE-2026-12027

CRITICAL
9.6
CVSS v3
NVD

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)

CWE-250CWE-693Protection Mechanism Failure

How to fix

Remediation Available
chromiumDebian
Fixed in:149.0.7827.114-1~deb12u1CVE-2026-12027
Fixed in:149.0.7827.114-1~deb13u1CVE-2026-12027
Fixed in:149.0.7827.114-1CVE-2026-12027
Google ChromeWindows application
Affected:149.0.7827.115Fixed in:149.0.7827.115Google LLC
Affected:149.0.7827.114Fixed in:149.0.7827.114Google LLC
Google Chrome (EXE)Windows application
Affected:149.0.7827.115Fixed in:149.0.7827.115Google LLC
Affected:149.0.7827.114Fixed in:149.0.7827.114Google LLC
Google Chrome BetaWindows application
Affected:149.0.7827.115Fixed in:149.0.7827.115Google LLC
Affected:149.0.7827.114Fixed in:149.0.7827.114Google LLC
Google Chrome Beta (EXE)Windows application
Affected:149.0.7827.114Fixed in:149.0.7827.114Google LLC
Affected:149.0.7827.115Fixed in:149.0.7827.115Google LLC
Google Chrome CanaryWindows application
Affected:149.0.7827.115Fixed in:149.0.7827.115Google LLC
Affected:149.0.7827.114Fixed in:149.0.7827.114Google LLC
Google Chrome DevWindows application
Affected:149.0.7827.115Fixed in:149.0.7827.115Google LLC
Affected:149.0.7827.114Fixed in:149.0.7827.114Google LLC
Google Chrome Dev (EXE)Windows application
Affected:149.0.7827.114Fixed in:149.0.7827.114Google LLC
Affected:149.0.7827.115Fixed in:149.0.7827.115Google LLC

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

0.22%probability of exploitation in 30 days
13thpercentile

Low risk: more likely to be exploited than 13% of all known CVEs.

References

Issue Tracking1
Embed a live status badge for CVE-2026-12027
CVE-2026-12027 severity badge

Markdown

[![CVE-2026-12027](https://tridentstack.com/cve/badge/CVE-2026-12027.svg)](https://tridentstack.com/cve/CVE-2026-12027)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-12027"><img src="https://tridentstack.com/cve/badge/CVE-2026-12027.svg" alt="CVE-2026-12027"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-23.