PatchSiren cyber security CVE debrief

CVE-2026-11640 Google CVE debrief

CVE-2026-11640 is an integer overflow vulnerability in libyuv in Google Chrome prior to 149.0.7827.103. A remote attacker who had compromised the renderer process could potentially perform a sandbox escape via a crafted HTML page. The vulnerability has a CVSS score of 8.3 and is considered HIGH severity.

Vendor: Google
Product: Chrome
CVSS: HIGH 8.3
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 an integer overflow in libyuv, which is used in Google Chrome. An attacker who has compromised the renderer process can exploit this vulnerability to potentially escape the sandbox via a crafted HTML page.

Defensive priority

High

Recommended defensive actions

Update Google Chrome to version 149.0.7827.103 or later.

Evidence notes

The CVE record and NVD detail can be found at [cve-org] and [nvd], respectively.

Sources and references

Verified primary and authoritative sources

CVE-2026-11640 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-11640

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-11640 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11640

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

Supplemental references

Mitigation or vendor reference
Unverified legacy reference

URL: https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html

[email protected] - Release Notes, Vendor Advisory
Source reference
Unverified legacy reference

URL: https://issues.chromium.org/issues/517339758

[email protected] - Permissions Required

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.