CVE-2026-11158: Insufficient validation of untrusted input in Downloads

Published Apr 12, 2026
·
Updated

Chromium: CVE-2026-11158 Insufficient validation of untrusted input in Downloads

Other sources

Insufficient validation of untrusted input in Downloads in Google Chrome on Mac prior to 149.0.7827.53 allowed a local attacker to potentially perform a sandbox escape via a crafted AppleScript command. (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

Google

Affected Software

5 affected componentsFixes available
Google Chrome<149.0.7827.53
149.0.7827.53
Microsoft Edge (Chromium-based)
Patch available
Microsoft Edge<149.0.4022.52
All of the following
Google Chrome<149.0.7827.53
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 149.0.7827.53
  2. Upgrade

    Upgrade Google Chrome to a version that resolves this vulnerability.

    Fixed in 149.0.7827.53
  3. Upgrade

    Upgrade Chromium to a version that resolves this vulnerability.

    Fixed in 149.0.7827.53
  4. Operational

    Update Microsoft Edge (Chromium-based) once it ingests the Chromium fix; monitor Google Chrome Releases for when the Chromium update is incorporated into Edge.

Event History

Apr 12, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Jun 4, 2026
CVE Published
via MITRE·11:05 PM
Data Sourced
via MITRE·11:05 PM
DescriptionWeakness
Data Sourced
via NVD·11:17 PM
DescriptionSeverityWeaknessAffected Software
Jun 5, 2026
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
DescriptionAffected Software

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-2026-11158?

CVE-2026-11158 has a high severity score of 8.6 according to the CVSS 3.1 standard.

2

How do I fix CVE-2026-11158?

To fix CVE-2026-11158, update Google Chrome or Microsoft Edge to version 149.0.7827.53 or later.

3

Who is affected by CVE-2026-11158?

CVE-2026-11158 affects users of Google Chrome on Mac and Chromium-based Microsoft Edge prior to version 149.0.7827.53.

4

What type of vulnerability is CVE-2026-11158?

CVE-2026-11158 is classified as an input validation vulnerability that allows a local attacker to perform a sandbox escape.

5

What could be the impact of CVE-2026-11158?

The impact of CVE-2026-11158 can lead to potential unauthorized actions being executed on a user's system through a crafted AppleScript.

Company

Resources

Contact

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