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CVE-2026-11677 Google CVE debrief

CVE-2026-11677 is a High-severity vulnerability in Google Chrome on Mac. A remote attacker who has compromised the network process can potentially perform a sandbox escape via a crafted HTML page. The vulnerability was published on June 9, 2026, and has a CVSS score of 8.3.

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 on Mac prior to version 149.0.7827.103 should update to the latest version to mitigate this vulnerability.

Technical summary

The vulnerability is a race condition in the Network component of Google Chrome on Mac. It allows a remote attacker who has compromised the network process to potentially perform a sandbox escape via a crafted HTML page.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome on Mac 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.

Evidence notes

The vulnerability was published on June 9, 2026, and has a CVSS score of 8.3. It is classified as CWE-362.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11677 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11677

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

  • CVE-2026-11677 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11677

    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.