CVE-2026-121255

Awaiting Analysis Awaiting Analysis - Queue

Incorrect Authorization in Autofill AI in Google Chrome

Publication date: 2026-11-03

Last updated on: 2026-11-03

Assigner: Chrome

Description

Incorrect authorization in Autofill AI in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-11-03

Last Modified

2026-11-03

Generated

2026-11-04

AI Q&A

2026-11-04

EPSS Evaluated

N/A

NVD

CVE-2026-121255

EUVD

EUVD-2026-116466

Affected Vendors & Products

Vendor	Product	Version / Range
Google	Chrome	157.0.8103.38

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability involves incorrect authorization in Autofill AI within Google Chrome versions before 157.0.8103.38. A remote attacker could exploit this by creating a specially crafted HTML page to bypass security measures and access cross-origin data, meaning data from other websites or domains.

Impact Analysis

If you use an affected version of Google Chrome, this vulnerability could allow attackers to steal sensitive data from other websites you visit while using the browser. This might include personal information, login credentials, or other confidential data.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, which may violate GDPR and HIPAA requirements for data protection and privacy. Organizations using affected Chrome versions might face compliance risks and potential legal consequences.

Mitigation Strategies

Update Google Chrome to version 157.0.8103.38 or later to address the incorrect authorization issue in Autofill AI.

Hi! I’m here to help you understand CVE-2026-121255. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70

EPSS Chart

Security Radar

News mentioning this vulnerability

Loading related security news...