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CVE-2026-11642 Google CVE debrief

CVE-2026-11642 is a high-severity vulnerability in Google Chrome prior to version 149.0.7827.103. The vulnerability is a use-after-free issue in Web Apps, which could allow a remote attacker who has compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. The CVSS score for this vulnerability is 8.3, indicating a high level of 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. Additionally, administrators and security teams responsible for managing Chrome deployments should prioritize patching to prevent potential exploitation.

Technical summary

The vulnerability is caused by a use-after-free issue in Web Apps, which occurs when the browser's memory management system fails to properly handle the deletion of an object. This can be exploited by a remote attacker who has compromised the renderer process, allowing them to potentially perform a sandbox escape via a crafted HTML page.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.103 or later.
  • Review and apply the vendor's advisory and release notes for additional information and mitigation guidance. [ref-4](https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html)

Evidence notes

The CVE record and NVD detail provide additional information on the vulnerability, including its CVSS score and vector. [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-11642) [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-11642)

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11642 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11642

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

  • CVE-2026-11642 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11642

    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.