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)

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Google Chrome affected
Version Status Constraints
148.0.7778.179 affected < 148.0.7778.179

No data.

No data.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0841193308.html cve-icon cve-icon
https://issues.chromium.org/issues/495999481 cve-icon cve-icon
History

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

Projects

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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 : Received

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

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

Link: CVE-2026-9115

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-20T21:30:36Z

Weaknesses