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CVE-2026-12437
Google Chrome WebShare Use-After-Free Sandbox Escape
Overview
Description

Use after free in WebShare in Google Chrome on Windows prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

Details
INFO

Published Date :

June 17, 2026, 1:38 a.m.

Last Modified :

June 17, 2026, 1:38 a.m.

Remotely Exploit :

No

Source :

Chrome
Impact
Affected Products

The following products are affected by CVE-2026-12437 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Google chrome
2 Google chrome
: Total Affected Vendor : 1 | Products : 2
Solution
Apply security updates to Google Chrome to patch the use-after-free vulnerability.
  • Update Google Chrome to the latest version.
  • Apply vendor patches when available.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-12437 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.