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CVE-2026-11206 Google CVE debrief

CVE-2026-11206 is a Medium severity vulnerability in Google Chrome prior to version 149.0.7827.53. The vulnerability is caused by insufficient policy enforcement in ServiceWorker, which allows a remote attacker to leak cross-origin data via a crafted HTML page.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-06-06
Advisory published
2026-06-04
Advisory updated
2026-06-06

Who should care

Users of Google Chrome prior to version 149.0.7827.53

Technical summary

The vulnerability has a CVSS score of 6.5 and is classified as CWE-693. The affected product is Google Chrome, with a CPE criteria of cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

Defensive priority

Medium

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later

Evidence notes

The CVE record was obtained from the official CVE.org website [cve-org]. Additional details were obtained from the NVD detail page [nvd] and the source item URL [source-item].

Official resources

CVE-2026-11206 was published on 2026-06-04T23:17:27.813Z and modified on 2026-06-06T01:59:18.047Z.