CVE-2026-11255: Insufficient validation of untrusted input in Storage Access API

Published Apr 1, 2026
·
Updated

Chromium: CVE-2026-11255 Insufficient validation of untrusted input in Storage Access API

Other sources

Insufficient validation of untrusted input in Storage Access API in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to leak cross-origin data 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

7 affected componentsFixes available
Google Chrome<149.0.7827.53
149.0.7827.53
All of the following
Google Chrome<149.0.7827.53
Any of the following
Apple macOS
Linux Linux kernel
Microsoft Windows
Microsoft Edge (Chromium-based)
Patch available
Microsoft Edge<149.0.4022.52

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 / Chromium to a version that resolves this vulnerability.

    Fixed in 149.0.7827.53

Event History

Apr 1, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Jun 4, 2026
CVE Published
via MITRE·11:06 PM
Data Sourced
via MITRE·11:06 PM
DescriptionWeakness
Jun 5, 2026
Data Sourced
via NVD·12:17 AM
DescriptionSeverityWeaknessAffected Software
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-2026-11255?

The severity of CVE-2026-11255 is classified as low.

2

How do I fix CVE-2026-11255?

To fix CVE-2026-11255, update Google Chrome to version 149.0.7827.53 or later.

3

What type of vulnerability is CVE-2026-11255?

CVE-2026-11255 pertains to insufficient validation of untrusted input in the Storage Access API.

4

What can an attacker potentially achieve with CVE-2026-11255?

An attacker could potentially leak cross-origin data via a crafted HTML page if they compromised the renderer process.

5

Which software is affected by CVE-2026-11255?

CVE-2026-11255 affects Google Chrome versions prior to 149.0.7827.53.

Company

Resources

Contact

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