CVE-2026-11143 Information disclosure in Chrome
An attacker can obtain sensitive process memory information by tricking a user into installing a malicious Chrome extension on Linux.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-11143?
CVE-2026-11143 is a medium-severity vulnerability in Google Chrome, published on 4 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Out of bounds read in Extensions in Google Chrome on Linux prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to obtain potentially sensitive information from process memory via a crafted Chrome Extension. (Chromium security severity: Medium)
Weakness: CWE-122
Which versions are affected by CVE-2026-11143?
It affects 1 product.
Products include Google Chrome.
How do I fix CVE-2026-11143?
Upgrade to a fixed version.
Is CVE-2026-11143 being exploited?
There is no known exploitation of CVE-2026-11143 in the wild and no public exploit code.
Other vulnerabilities in Google Chrome
Sources
Also known as DEBIAN-CVE-2026-11143, ECHO-cff7-76ec-8def, GHSA-jjwm-mmf2-4537, MINI-f9hf-c3q4-h7mp.