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PatchSiren cyber security CVE debrief

CVE-2026-12020 Google CVE debrief

CVE-2026-12020 is a high-severity vulnerability in Google Chrome on Mac, allowing remote attackers to potentially exploit heap corruption via a crafted HTML page. The vulnerability is caused by a use-after-free issue in the Autofill feature. Successful exploitation could lead to heap corruption.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-13
Advisory published
2026-06-11
Advisory updated
2026-06-13

Who should care

Users of Google Chrome on Mac prior to version 149.0.7827.115 should update to the latest version to mitigate this vulnerability.

Technical summary

The vulnerability is caused by a use-after-free issue in the Autofill feature of Google Chrome on Mac. This issue allows remote attackers to potentially exploit heap corruption via a crafted HTML page. The CVSS score for this vulnerability is 8.8, indicating a high severity.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome on Mac to version 149.0.7827.115 or later.

Evidence notes

The CVE record and NVD detail can be found at [cve-org] and [nvd], respectively. Additional information can be found in the vendor advisory at [ref-4].

Sources and references

Verified primary and authoritative sources

  • CVE-2026-12020 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-12020

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

  • CVE-2026-12020 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-12020

    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.