PatchSiren cyber security CVE debrief

CVE-2026-113218 Google CVE debrief

CVE-2026-113218 debrief based on CVE Program and NVD records. Google Chrome users should assess exposure to version 156.0.8078.47 and earlier. The CVE record was published on 2026-10-20T21:02:18.053Z and has not been modified since then. This use-after-free vulnerability in Google Chrome's DataTransfer component could allow remote attackers to execute arbitrary code inside the sandbox via a crafted HTML page. Defenders should verify the version of Google Chrome in use and update to 156.0.8078.47 or later to mitigate potential exposure.

Vendor: Google
Product: Chrome
CVSS: Unknown
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-10-20
Original CVE updated: 2026-10-21
Advisory published: 2026-10-20
Advisory updated: 2026-10-21

Who should care

Google Chrome users, particularly those with versions prior to 156.0.8078.47, should assess exposure and verify the version in use. This includes administrators and users of Google Chrome in various environments, such as enterprise, education, and personal use. It is essential to verify the version of Google Chrome in use and update to 156.0.8078.47 or later to mitigate potential exposure to this vulnerability.

Why it matters

CVE-2026-113218 is a use-after-free vulnerability in Google Chrome's DataTransfer component. Defenders should verify the version of Google Chrome in use and update to 156.0.8078.47 or later to mitigate potential exposure.

Remote attackers may execute arbitrary code inside the sandbox
Exposure requires verification from official sources
Remediation priority is medium due to potential for code execution
Defenders should verify Google Chrome version and update as necessary

Technical summary

The CVE Program and NVD records indicate a use-after-free vulnerability in Google Chrome's DataTransfer component prior to version 156.0.8078.47. This vulnerability could allow a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. The vulnerability is classified as a use-after-free issue, which can occur when the program attempts to access memory that has already been freed. In this case, the vulnerability is triggered by a crafted HTML page, which can cause the program to crash or execute arbitrary code.

Defensive priority

Medium

Recommended defensive actions

Update Google Chrome to version 156.0.8078.47 or later
Review and verify the version of Google Chrome in use
Assess exposure to the vulnerable component
Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

Sources and references

Verified primary and authoritative sources

CVE-2026-113218 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-113218

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-113218 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113218

NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

CVE-2026-113218
Unverified legacy reference

URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113218.json

cve_program_cvelist_v5
Source reference
Unverified legacy reference

URL: https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html

Supplemental source
Source reference
Unverified legacy reference

URL: https://issues.chromium.org/issues/518003952

Supplemental source

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.