CVE-2026-5881: Policy bypass in LocalNetworkAccess

Published Oct 22, 2025
·
Updated

Chromium: CVE-2026-5881 Policy bypass in LocalNetworkAccess

Other sources

Policy bypass in LocalNetworkAccess in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Medium)

MITRE

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

asnine

Affected Software

7 affected componentsFixes available
Google Chrome<147.0.7727.55
147.0.7727.55
Microsoft Edge (Chromium-based)
Microsoft Edge<147.0.3912.60
All of the following
Google Chrome<147.0.7727.55
Any of the following
Apple macOS
Linux Linux kernel
Microsoft Windows

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 147.0.7727.55
  2. Upgrade

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

    Fixed in 147.0.7727.55
  3. Upgrade

    Upgrade Microsoft Edge (Chromium-based) to a version that resolves this vulnerability.

    Fixed in 147.0.7727.55

Event History

Oct 22, 2025
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Apr 8, 2026
CVE Published
via MITRE·09:20 PM
Data Sourced
via MITRE·09:20 PM
DescriptionWeakness
Data Sourced
via NVD·10:16 PM
DescriptionSeverityWeaknessAffected Software
Apr 11, 2026
Data Sourced
via Microsoft·12:31 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·12:31 AM
DescriptionAffected Software
Jun 24, 58257
Event
via FIRST·07:37 PM

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-5881?

The severity of CVE-2026-5881 is rated as medium with a score of 6.5.

2

How do I fix CVE-2026-5881?

To fix CVE-2026-5881, update Google Chrome or Microsoft Edge to version 147.0.7727.55 or later.

3

What type of attacks can exploit CVE-2026-5881?

CVE-2026-5881 can be exploited by remote attackers to bypass navigation restrictions through a crafted HTML page.

4

Which software is affected by CVE-2026-5881?

CVE-2026-5881 affects Google Chrome and Microsoft Edge (both Chromium-based and non-Chromium-based versions).

5

When was CVE-2026-5881 published?

CVE-2026-5881 was published on October 22, 2025.

Contact

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