CVE-2026-7961: Insufficient validation of untrusted input in Permissions

Published Mar 27, 2026
·
Updated

Chromium: CVE-2026-7961 Insufficient validation of untrusted input in Permissions

Other sources

Insufficient validation of untrusted input in Permissions in Google Chrome prior to 148.0.7778.96 allowed an attacker on the local network segment to leak cross-origin data via malicious network traffic. (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

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
  3. Compensating control

    Because Microsoft Edge (Chromium-based) ingests Chromium and addresses this vulnerability, limit access from the local network segment that could send malicious network traffic (e.g., restrict/segment the network so only trusted clients can communicate with the affected users’ machines and browsers).

Event History

Mar 27, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
May 6, 2026
CVE Published
via MITRE·06:12 PM
Data Sourced
via MITRE·06:12 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
Sep 28, 58369
Event
via FIRST·02:08 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-2026-7961?

CVE-2026-7961 has a medium severity rating of 4.3 according to CVSS 3.1.

2

How do I fix CVE-2026-7961?

To fix CVE-2026-7961, update Google Chrome to version 148.0.7778.96 or later.

3

What is CVE-2026-7961 about?

CVE-2026-7961 involves insufficient validation of untrusted input in Permissions, which can lead to cross-origin data leakage.

4

Which software is affected by CVE-2026-7961?

CVE-2026-7961 affects Google Chrome prior to version 148.0.7778.96 and also impacts Microsoft Edge based on Chromium.

5

What type of input validation issue is associated with CVE-2026-7961?

CVE-2026-7961 is categorized as an Input Validation issue due to its insufficient checks on untrusted input.

Company

Resources

Contact

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