CVE-2026-17844: Insufficient validation of untrusted input in Cast

Published May 30, 2026
·
Updated

Chromium: CVE-2026-17844 Insufficient validation of untrusted input in Cast

Other sources

Insufficient validation of untrusted input in Cast in Google Chrome prior to 151.0.7922.72 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

4 affected componentsFixes available
Google Chrome<151.0.7922.72
Google Chrome<151.0.7922.71
151.0.7922.71
Microsoft Edge (Chromium-based)<151.0.4129.59
151.0.4129.59
Microsoft Edge<151.0.4129.59

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 151.0.7922.71
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 151.0.4129.59
  3. Upgrade

    Upgrade Chromium (Cast) to a version that resolves this vulnerability.

    Fixed in 151.0.7922.72Patch CVE-2026-17844

Event History

May 30, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Jul 30, 2026
CVE Published
via MITRE·12:19 AM
Data Sourced
via MITRE·12:19 AM
DescriptionWeakness
Data Sourced
via NVD·01:16 AM
DescriptionSeverityWeakness
Jul 31, 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-2026-17844?

CVE-2026-17844 has a severity score of medium, rated at 4.3 according to the CVSS 3.1 metrics.

2

How do I fix CVE-2026-17844?

To fix CVE-2026-17844, update Google Chrome or Microsoft Edge to version 151.0.7922.72 or later.

3

What type of vulnerability is CVE-2026-17844?

CVE-2026-17844 is an input validation vulnerability that allows an attacker to leak cross-origin data.

4

Who is affected by CVE-2026-17844?

CVE-2026-17844 affects users of Google Chrome prior to version 151.0.7922.72 and Microsoft Edge based on Chromium.

5

Can CVE-2026-17844 lead to data leakage?

Yes, CVE-2026-17844 can potentially allow an attacker on the local network to leak cross-origin data via malicious network traffic.

Company

Resources

Contact

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