CVE-2026-9116

Insufficient policy enforcement in ServiceWorker in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to leak cross-origin data via a crafted…

Medium · published May 20, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
14.2
In the wild
Unconfirmed
What it is

Insufficient policy enforcement in ServiceWorker in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00240 · 14.2th percentile
Published
2026-05-20T19:12Z
EPSS history
Timeline
  • 20 MAY 19:12Z
    Insufficient policy enforcement in ServiceWorker in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to leak cross-origin data via a crafted…
    cvelistv5