CVE-2026-11656

HIGH EPSS 6.6%

Published Jun 9, 20263w ago · Modified Jun 17, 20262w ago

8.3 CVSS 3.1

High

Published Jun 9, 2026 3w ago

Last Modified Jun 17, 2026 2w ago

Description

Use after free in ServiceWorker in Google Chrome prior to 149.0.7827.103 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension. (Chromium security severity: High)

CVSS Details

Base Score

8.3

Exploitability

1.6

Impact

6.0

Vector string

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector Network

Attack Complexity High

Privileges Required None

User Interaction Required

Scope Changed

Confidentiality High

Integrity High

Availability High

Threat Intelligence

EPSS Exploit Probability

6.6% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 4

Vendor	Product	Version	Range
google	chrome	*	<149.0.7827.103
apple	macos	*	any
linux	linux_kernel	*	any
microsoft	windows	*	any

References 2

chromereleases.googleblog.com https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html

Release NotesVendor Advisory
issues.chromium.org https://issues.chromium.org/issues/513424000

Permissions Required

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.