PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-11683 Google CVE debrief

CVE-2026-11683 is a high-severity vulnerability in Google Chrome prior to version 149.0.7827.103. This use-after-free issue in WebCodecs allows remote attackers to execute arbitrary code inside a sandbox via a crafted HTML page. The vulnerability has a CVSS score of 8.8 and is considered High severity by Chromium.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.8
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 are affected by this vulnerability. Successful exploitation could allow remote attackers to execute arbitrary code inside a sandbox.

Technical summary

The vulnerability is a use-after-free issue in WebCodecs, a component of Google Chrome. This type of vulnerability occurs when the program attempts to use memory after it has been freed, which can lead to arbitrary code execution.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.103 or later to mitigate this vulnerability.
  • Users should ensure that their browser is up-to-date to prevent exploitation.

Evidence notes

The CVE record and NVD detail for CVE-2026-11683 provide additional information on this vulnerability. See resourceLinkAnnotations for links to these resources.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11683 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11683

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

  • CVE-2026-11683 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11683

    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.