Insufficient Policy Enforcement in Google Chrome ServiceWorker
CVE-2026-9116

4.3MEDIUM

Key Information:

Vendor

Google
Status
Chrome
Vendor
CVE Published:
20 May 2026

What is CVE-2026-9116?

A vulnerability exists in the ServiceWorker component of Google Chrome that allows a remote attacker to exploit insufficient policy enforcement. This security flaw enables the attacker to leak cross-origin data through the use of a specially crafted HTML page. Users of versions prior to 148.0.7778.179 of Google Chrome are particularly at risk as this vulnerability poses significant security concerns, allowing unauthorized access and potential data exposure.

Affected Version(s)

Chrome 148.0.7778.179

References

https://chromereleases.googleblog.com/2026/05/stable-chan...
https://issues.chromium.org/issues/497436273

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.