Description
Insufficient policy enforcement in Service Worker in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: High)
Published: 2026-05-20
Score: 4.3 Medium
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-6287-1 chromium security update
History

Fri, 29 May 2026 00:15:00 +0000

Type Values Removed Values Added
Title chromium-browser: Insufficient policy enforcement in Service Worker
Weaknesses CWE-940
References
Metrics threat_severity

None

threat_severity

Important


Thu, 21 May 2026 17:00:00 +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

Wed, 20 May 2026 23:15:00 +0000

Type Values Removed Values Added
Title Same‑Origin Policy Bypass via Service Worker Policy Enforcement Failure in Google Chrome

Wed, 20 May 2026 21:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-285

Wed, 20 May 2026 21:15:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Wed, 20 May 2026 21:00:00 +0000

Type Values Removed Values Added
Title Same‑Origin Policy Bypass via Service Worker Policy Enforcement Failure in Google Chrome
Weaknesses CWE-285

Wed, 20 May 2026 20:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-693
Metrics 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'}

ssvc

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


Wed, 20 May 2026 19:30:00 +0000

Type Values Removed Values Added
Description Insufficient policy enforcement in Service Worker in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: High)
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-05-20T19:39:08.556Z

Reserved: 2026-05-20T17:39:22.001Z

Link: CVE-2026-9115

cve-icon Vulnrichment

Updated: 2026-05-20T19:39:03.977Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-20T20:16:42.640

Modified: 2026-06-17T11:04:51.440

Link: CVE-2026-9115

cve-icon Redhat

Severity : Important

Publid Date: 2026-05-19T00:00:00Z

Links: CVE-2026-9115 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-29T04:45:36Z

Weaknesses