CVE-2026-9989

Undergoing Analysis Undergoing Analysis - In Progress

Inappropriate Implementation in Google Chrome Media Allows Same Origin Policy Bypass

Publication date: 2026-05-28

Last updated on: 2026-06-01

Assigner: Chrome

Description

Inappropriate implementation in Media in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to bypass same origin policy via a crafted video file. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-05-28

Last Modified

2026-06-01

Generated

2026-07-09

AI Q&A

2026-05-29

EPSS Evaluated

2026-07-08

NVD

CVE-2026-9989

EUVD

EUVD-2026-33131

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 148.0.7778.216 (exc)
google	chrome	to 148.0.7778.215 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-346	The product does not properly verify that the source of data or communication is valid.

Attack-Flow Graph

Mitigation Strategies

To mitigate this vulnerability, update Google Chrome to version 148.0.7778.216 or later, as the issue is fixed in that version.

Executive Summary

This vulnerability is an inappropriate implementation in the Media component of Google Chrome versions prior to 148.0.7778.216. It allows a remote attacker to bypass the same origin policy by using a specially crafted video file.

Impact Analysis

By bypassing the same origin policy, a remote attacker could potentially access or manipulate data from other origins that should be restricted, leading to unauthorized data access or other security breaches.

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