CVE-2026-11206

Insufficient policy enforcement in ServiceWorker in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML…

Medium · published June 4, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
12.9
In the wild
Unconfirmed
What it is

Insufficient policy enforcement in ServiceWorker in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00229 · 12.9th percentile
Published
2026-06-04T23:05Z
EPSS history
Timeline
  • 04 JUN 23:05Z
    Insufficient policy enforcement in ServiceWorker in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML…
    cvelistv5