CVE-2026-8012: Inappropriate implementation in MHTML

Published Mar 26, 2026
·
Updated

Chromium: CVE-2026-8012 Inappropriate implementation in MHTML

Other sources

Inappropriate implementation in MHTML in Google Chrome prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page. (Chromium security severity: Low)

— 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

Google

Affected Software

8 affected componentsFixes available
Google Google Chrome<148.0.7778.96
Google Chrome<148.0.7778.96
148.0.7778.96
All of the following
Google Chrome<148.0.7778.96
Any of the following
Apple macOS
Linux Linux kernel
Microsoft Windows
Microsoft Edge (Chromium-based)
Patch available
Microsoft Edge<148.0.3967.54

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 148.0.7778.96
  2. Upgrade

    Upgrade Chromium/Google Chrome to a version that resolves this vulnerability.

    Fixed in 148.0.7778.96

Event History

Mar 26, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
May 6, 2026
CVE Published
via MITRE·06:13 PM
Data Sourced
via MITRE·06:13 PM
DescriptionWeakness
Data Sourced
via NVD·07:16 PM
DescriptionSeverityWeaknessAffected Software
May 7, 2026
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
DescriptionAffected Software
May 30, 58331
Event
via FIRST·08:53 AM

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2026-8012?

The severity of CVE-2026-8012 is classified as Low within Chromium security.

2

How do I fix CVE-2026-8012?

To fix CVE-2026-8012, update Google Chrome to version 148.0.7778.96 or later.

3

What does CVE-2026-8012 exploit?

CVE-2026-8012 exploits an inappropriate implementation in MHTML that allows remote attackers to inject arbitrary scripts or HTML.

4

Which versions of Google Chrome are affected by CVE-2026-8012?

Google Chrome versions prior to 148.0.7778.96 are affected by CVE-2026-8012.

5

Who can be impacted by CVE-2026-8012?

Users of Google Chrome prior to version 148.0.7778.96 can be impacted by CVE-2026-8012 if they visit a crafted HTML page.

Company

Resources

Contact

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