CVE-2026-87598

chromium-browser: chromium-browser: Incorrect authorization in ServiceWorker

Published Sep 9, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
Incorrect authorization in ServiceWorker in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Low)

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-4790-1 chromium security update
Debian DSA Debian DSA DSA-6506-1 chromium security update
History
Type Values Removed Values Added
First Time appeared Google
Google chrome
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/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 Authorization Bypass in ServiceWorker Allowing Origin Policy Bypass chromium-browser: chromium-browser: Incorrect authorization in ServiceWorker
Weaknesses CWE-940
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}

threat_severity

Moderate

Type Values Removed Values Added
Title Authorization Bypass in ServiceWorker Allowing Origin Policy Bypass
Type Values Removed Values Added
Description Incorrect authorization in ServiceWorker in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Low)
Weaknesses CWE-863
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Sep 9, 2026, 5:26 PM
Reserved
Sep 8, 2026, 10:41 PM
Status
Analyzed
Published
Sep 9, 2026, 1:17 AM
Modified
Sep 9, 2026, 8:22 PM
Severity
Moderate
Public date
Sep 9, 2026, 12:10 AM