CVE-2026-78947

Published Aug 25, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Incomplete cleanup in Chromium in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted Chrome extension. (Chromium security severity: Low)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4771-1 chromium security update
Debian DSA Debian DSA DSA-6482-1 chromium security update
History
Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Title Chromium Incomplete Cleanup Enables Origin Policy Bypass via Malicious Extension
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'}

ssvc

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

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Chromium Incomplete Cleanup Enables Origin Policy Bypass via Malicious Extension
Type Values Removed Values Added
Description Incomplete cleanup in Chromium in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted Chrome extension. (Chromium security severity: Low)
Weaknesses CWE-459
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Aug 27, 2026, 3:15 PM
Reserved
Aug 25, 2026, 6:04 AM
Status
Analyzed
Published
Aug 25, 2026, 9:17 PM
Modified
Aug 28, 2026, 5:31 PM