Web Origin Policy Bypass Vulnerability in Google Chrome
CVE-2026-121252

8.8HIGH

Key Information:

Vendor

Google
Status
Chrome
Vendor
CVE Published:
3 November 2026

What is CVE-2026-121252?

An authorization flaw in Google Chrome Core prior to version 157.0.8103.38 allows attackers to bypass the web origin policy. This vulnerability enables remote attackers to craft HTML pages that exploit this weakness, posing potential risks to user data and application security. It is critical for users to update to the latest version of Google Chrome to mitigate this vulnerability.

Affected Version(s)

Chrome 157.0.8103.38

References

https://chromereleases.googleblog.com/2026/11/stable-chan...
https://issues.chromium.org/issues/550356947

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.