PatchSiren cyber security CVE debrief

CVE-2026-113073 Google CVE debrief

CVE-2026-113073 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 2026-10-20T21:02:20.360Z and has not been modified since then. This use-after-free vulnerability in Google Chrome prior to version 156.0.8078.47 allows remote attackers to execute arbitrary code inside the sandbox via a crafted HTML page. Users should verify their browser versions and update to 156.0.8078.47 or later.

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 their exposure and take necessary actions to update their browsers. This includes users of Google Chrome on desktop and mobile platforms. IT administrators should prioritize updating Google Chrome to version 156.0.8078.47 or later, and monitor for updates and patches. Security teams should review compensating controls for exposed systems and verify the effectiveness

Why it matters

CVE-2026-113073 is a use-after-free vulnerability in Google Chrome that allows remote attackers to execute arbitrary code inside the sandbox. Defenders should assess exposure, prioritize updates, and monitor for patches.

Remote attackers may execute arbitrary code inside the sandbox
Google Chrome users may be vulnerable to attacks via crafted HTML pages
Defenders should prioritize updating Google Chrome to version 156.0.8078.47 or later

Technical summary

A use-after-free vulnerability exists in Google Chrome prior to version 156.0.8078.47. This vulnerability allows remote attackers to execute arbitrary code inside the sandbox via a crafted HTML page. The vulnerability is caused by a use-after-free error in the Browser component of Google Chrome. Defenders should assess exposure, prioritize updates, and monitor for patches. The CVE record and NVD entry provide details on this vulnerability, including its severity and potential impact. Users should verify their browser versions and update to 156.0.8078.47 or later.

Defensive priority

High

Recommended defensive actions

Assess exposure of Google Chrome installations to version 156.0.8078.47 and earlier
Verify and apply updates to Google Chrome to version 156.0.8078.47 or later
Monitor Google Chrome for updates and apply patches as necessary
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

The CVE record and NVD entry provide details on a use-after-free vulnerability in Google Chrome prior to version 156.0.8078.47. The vulnerability allows remote attackers to execute arbitrary code inside the sandbox via a crafted HTML page.

Sources and references

Verified primary and authoritative sources

CVE-2026-113073 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-113073

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-113073 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113073

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

Supplemental references

CVE-2026-113073
Unverified legacy reference

URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113073.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/519217664

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.