PatchSiren cyber security CVE debrief

CVE-2026-113253 Google CVE debrief

CVE-2026-113253 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 2026-10-20T21:01:49.462Z and has not been modified since then. This use-after-free vulnerability in Google Chrome's Canvas component allows remote attackers to execute arbitrary code within the sandbox via a crafted HTML page. Users should prioritize patching to prevent potential arbitrary code execution within the sandbox.

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 prioritize patching to prevent potential arbitrary code execution within the sandbox.

Why it matters

CVE-2026-113253 is a use-after-free vulnerability in Google Chrome's Canvas component that allows remote attackers to execute arbitrary code within the sandbox. Google Chrome users, particularly those with versions prior to 156.0.8078.47, should assess exposure and prioritize patching.

Potential for remote code execution within the sandbox
Need for patching vulnerable Google Chrome installations
Monitoring for updates and applying patches as they become available

Technical summary

The CVE record and NVD entry indicate a use-after-free vulnerability in Google Chrome's Canvas component prior to version 156.0.8078.47. This issue allows remote attackers to execute arbitrary code within the sandbox via a crafted HTML page. The vulnerability is considered High severity by Chromium security. Google Chrome users, particularly those with versions prior to 156.0.8078.47, should assess exposure and prioritize patching to prevent potential arbitrary code execution within the sandbox. The CVE record was published on 2026-10-20T21:01:49.462Z and has not been modified since then.

Defensive priority

High

Recommended defensive actions

Assess exposure of Google Chrome installations to version 156.0.8078.47 and earlier
Prioritize patching of vulnerable Google Chrome installations
Monitor Google Chrome for updates and apply patches as they become available
Review compensating controls for exposed systems while remediation is scheduled and verified
Check relevant monitoring, detection, and logs for exposed assets that need extra review
Track exceptions, retest remediated assets, and close the item only after evidence is documented
Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

Sources and references

Verified primary and authoritative sources

CVE-2026-113253 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-113253

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-113253 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113253

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

Supplemental references

CVE-2026-113253
Unverified legacy reference

URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113253.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/553117109

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.