CVE-2026-121194
Google Chrome SiteIsolation Missing Authorization Vulnerability
Description
Missing authorization in SiteIsolation in Google Chrome prior to 157.0.8103.38 allowed a remote attacker who had compromised the renderer process to obtain sensitive information via a crafted PDF file. (Chromium security severity: Medium)
INFO
Published Date :
Nov. 3, 2026, 9:17 p.m.
Last Modified :
Nov. 3, 2026, 9:17 p.m.
Remotely Exploit :
No
Source :
[email protected]
Solution
- Update Google Chrome to version 157.0.8103.38 or later.
- Ensure SiteIsolation is enabled and properly configured.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-121194.
| URL | Resource |
|---|---|
| https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html | |
| https://issues.chromium.org/issues/566683019 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-121194 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-121194
weaknesses.
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-2026-121194 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-121194 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Nov. 03, 2026
Action Type Old Value New Value Added Description Missing authorization in SiteIsolation in Google Chrome prior to 157.0.8103.38 allowed a remote attacker who had compromised the renderer process to obtain sensitive information via a crafted PDF file. (Chromium security severity: Medium) Added CWE CWE-862 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/121xxx/CVE-2026-121194.json">CVE-2026-121194</a> Added Reference https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html Added Reference https://issues.chromium.org/issues/566683019