PatchSiren cyber security CVE debrief

CVE-2026-11657 Google CVE debrief

A high-severity vulnerability, CVE-2026-11657, was discovered in Google Chrome on Mac. This use after free vulnerability in Payments allowed a remote attacker to execute arbitrary code via a crafted HTML page.

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 on Mac, particularly those who interact with payment functionality, should be aware of this vulnerability.

Technical summary

The vulnerability, with a CVSS score of 8.8, was caused by a use after free issue in the Payments component of Google Chrome on Mac. Successful exploitation could allow a remote attacker to execute arbitrary code.

Defensive priority

High

Recommended defensive actions

Update Google Chrome to version 149.0.7827.103 or later.
Avoid interacting with suspicious or untrusted HTML pages.

Evidence notes

Evidence from the NVD and Chromium security team confirms the vulnerability and its severity.

Sources and references

Verified primary and authoritative sources

CVE-2026-11657 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-11657

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-11657 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11657

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/513465272

[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.