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PatchSiren cyber security CVE debrief

CVE-2026-11140 Google CVE debrief

CVE-2026-11140 is an out of bounds read vulnerability in Chromecast in Google Chrome prior to 149.0.7827.53. A remote attacker who had compromised the renderer process could obtain potentially sensitive information from process memory via a crafted HTML page. The vulnerability has a CVSS score of 6.5 and is classified as Medium severity.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-07-23
Advisory published
2026-06-04
Advisory updated
2026-07-23

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 an out of bounds read in Chromecast in Google Chrome. This allows a remote attacker who has compromised the renderer process to obtain potentially sensitive information from process memory via a crafted HTML page.

Defensive priority

Medium

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.

Evidence notes

The vulnerability was reported by [email protected] and has been publicly disclosed.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11140 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11140

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

  • CVE-2026-11140 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11140

    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.