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CVE-2026-11242 Google CVE debrief

CVE-2026-11242 is a vulnerability in Google Chrome prior to version 149.0.7827.53. The issue is related to insufficient validation of untrusted input in Plugins, which allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. This vulnerability has been classified as having a high severity with a CVSS score of 7.5.

Vendor
Google
Product
Chrome
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-05
Original CVE updated
2026-06-05
Advisory published
2026-06-05
Advisory updated
2026-06-05

Who should care

Users of Google Chrome prior to version 149.0.7827.53 should update to the latest version to mitigate this vulnerability.

Technical summary

The vulnerability is caused by insufficient validation of untrusted input in Plugins in Google Chrome. This allows a remote attacker who has compromised the renderer process to leak cross-origin data via a crafted HTML page.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.
  • Refer to [ref-4](https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html) for mitigation or vendor reference.

Evidence notes

The CVE record [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-11242) and NVD detail [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-11242) provide additional information on this vulnerability.

Official resources

CVE-2026-11242 was published on 2026-06-05T00:17:00.470Z and modified on 2026-06-05T15:28:48.317Z.