CVE-2026-8565: Inappropriate implementation in Downloads

Published Sep 4, 2025
·
Updated

Chromium: CVE-2026-8565 Inappropriate implementation in Downloads

Other sources

Inappropriate implementation in Downloads in Google Chrome on Mac prior to 148.0.7778.168 allowed an attacker who convinced a user to install a malicious extension to perform UI spoofing via a crafted Chrome Extension. (Chromium security severity: Medium)

NVD

This CVE was assigned by Chrome.  Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information

Microsoft

Credit

Farras Givari

Affected Software

5 affected componentsFixes available
Google Chrome<148.0.7778.167
148.0.7778.167
Microsoft Edge (Chromium-based)
Microsoft Edge<148.0.3967.70
All of the following
Google Chrome<148.0.7778.168
Apple macOS

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 148.0.7778.167
  2. Upgrade

    Upgrade Chromium (Google Chrome on Mac) to a version that resolves this vulnerability.

    Fixed in 148.0.7778.168

Event History

Sep 4, 2025
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
May 14, 2026
CVE Published
via MITRE·07:52 PM
Data Sourced
via MITRE·07:52 PM
DescriptionWeakness
Data Sourced
via NVD·08:17 PM
DescriptionSeverityWeaknessAffected Software
May 16, 2026
Data Sourced
via Microsoft·12:21 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·12:21 AM
DescriptionAffected Software
Jun 29, 58424
Event
via FIRST·04:10 PM

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-8565?

CVE-2026-8565 has a medium severity rating of 4.7 according to the CVSS 3.1 framework.

2

How do I fix CVE-2026-8565?

To fix CVE-2026-8565, update Google Chrome or Microsoft Edge to the latest version prior to 148.0.7778.168.

3

What products are affected by CVE-2026-8565?

CVE-2026-8565 affects Google Chrome and Microsoft Edge based on the Chromium platform.

4

What kind of attack does CVE-2026-8565 allow?

CVE-2026-8565 allows an attacker to perform UI spoofing through a malicious Chrome extension.

5

When was CVE-2026-8565 published?

CVE-2026-8565 was published on September 4, 2025.

Contact

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