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PatchSiren cyber security CVE debrief

CVE-2026-11691 Google CVE debrief

CVE-2026-11691 is a vulnerability in Google Chrome prior to version 149.0.7827.103. The vulnerability is caused by insufficient validation of untrusted input in the New Tab Page. This allows a remote attacker who has compromised the renderer process to leak cross-origin data via a crafted HTML page. The Chromium security severity of this vulnerability is High, but the CVSS score is 3.1, indicating a Low severity.

Vendor
Google
Product
Chrome
CVSS
LOW 3.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-09
Advisory published
2026-06-09
Advisory updated
2026-06-09

Who should care

Users of Google Chrome prior to version 149.0.7827.103 should update to the latest version to mitigate this vulnerability.

Technical summary

The vulnerability is caused by insufficient validation of untrusted input in the New Tab Page in Google Chrome prior to version 149.0.7827.103. 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 149.0.7827.103 or later.
  • Refer to [ref-4](https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html) for more information.

Evidence notes

The CVE record [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-11691) and NVD detail [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-11691) provide additional information about this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11691 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11691

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-11691 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11691

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.