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CVE-2026-11678 Google CVE debrief

CVE-2026-11678 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 obtain potentially sensitive information from process memory via a crafted HTML page. The CVSS score for this vulnerability is 5.3, with a severity of MEDIUM. The vulnerability was published on [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-11678) and additional details can be found on [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-11678).

Vendor
Google
Product
Chrome
CVSS
MEDIUM 5.3
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 allows a remote attacker to obtain potentially sensitive information from process memory. The vulnerability has a CVSS score of 5.3 and a severity of MEDIUM.

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 vendor advisory information.

Evidence notes

The CVE was published on 2026-06-09T00:16:51.090Z and modified on 2026-06-09T14:52:52.527Z. The vulnerability affects Google Chrome prior to version 149.0.7827.103.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11678 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11678

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

  • CVE-2026-11678 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11678

    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.