CVE-2026-7997: Insufficient validation of untrusted input in Updater

Published Feb 26, 2026
·
Updated

Chromium: CVE-2026-7997 Insufficient validation of untrusted input in Updater

Other sources

Insufficient validation of untrusted input in Updater in Google Chrome on Mac prior to 148.0.7778.96 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (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

ochkofficial

Affected Software

6 affected componentsFixes available
Google Google Chrome for macOS<148.0.7778.96
Google Chrome<148.0.7778.96
148.0.7778.96
All of the following
Google Chrome<148.0.7778.96
Apple macOS
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 (Updater) to a version that resolves this vulnerability.

    Fixed in 148.0.7778.96

Event History

Feb 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·03:19 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-2026-7997?

The severity of CVE-2026-7997 is high, with a CVSS score of 7.8.

2

How do I fix CVE-2026-7997?

To mitigate CVE-2026-7997, update Google Chrome to version 148.0.7778.96 or later on macOS.

3

What systems are affected by CVE-2026-7997?

CVE-2026-7997 affects Google Chrome on macOS and can also impact Microsoft Edge when using the Chromium-based version.

4

What is the risk associated with CVE-2026-7997?

CVE-2026-7997 poses a risk of OS-level privilege escalation through insufficient validation of untrusted input.

5

When was CVE-2026-7997 published?

CVE-2026-7997 was published on February 26, 2026.

Company

Resources

Contact

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