CVE-2026-4453

chromium-browser: Integer overflow in Dawn

Published Mar 20, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
Integer overflow in Dawn in Google Chrome on Mac prior to 146.0.7680.153 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6171-1 chromium security update
History
Type Values Removed Values Added
First Time appeared Apple
Apple macos
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N'}

ssvc

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

cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}

Type Values Removed Values Added
Title Chrome Integer Overflow Leads to Cross‑Origin Data Leakage on macOS chromium-browser: Integer overflow in Dawn
Weaknesses CWE-190
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N'}

threat_severity

Important

Type Values Removed Values Added
Title Chrome Integer Overflow Leads to Cross‑Origin Data Leakage on macOS
Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Description Integer overflow in Dawn in Google Chrome on Mac prior to 146.0.7680.153 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-472
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Mar 20, 2026, 2:54 PM
Reserved
Mar 19, 2026, 8:23 PM
Status
Analyzed
Published
Mar 20, 2026, 2:16 AM
Modified
Jun 17, 2026, 10:56 AM
Severity
Important
Public date
Mar 18, 2026, 12:00 AM