Improper Authorization in Google Chrome Affects Web Security
CVE-2026-121222

8.8HIGH

Key Information:

Vendor

Google
Status
Chrome
Vendor
CVE Published:
3 November 2026

What is CVE-2026-121222?

An improper authorization vulnerability exists in Google Chrome prior to version 157.0.8103.38, allowing remote attackers to bypass the web origin policy. This can potentially enable an attacker to craft a malicious HTML page that manipulates user interactions, leading to unauthorized access or data exposure. Users are advised to update their Chrome browser to the latest version to mitigate this security risk.

Affected Version(s)

Chrome 157.0.8103.38

References

https://chromereleases.googleblog.com/2026/11/stable-chan...
https://issues.chromium.org/issues/523708065

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

.