CVE-2026-113342 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments should assess exposure and prioritize updates to prevent potential exploitation. This includes IT teams managing Chrome installations, security teams monitoring for potential threats, and operators ensuring the integrity of their Chrome environments. Immediate attention is required to verify Chrome version and ensure it is up-to-date, as well as to monitor Chrome releases for future updates to (

Why it matters

CVE-2026-113342 is a memory corruption vulnerability in Google Chrome that allows remote attackers to execute arbitrary code outside the sandbox. Defenders should prioritize updates to prevent potential exploitation.

• Remote code execution outside the sandbox requires immediate attention
• Verify Chrome version and ensure it is up-to-date to prevent exploitation
• Monitor Chrome releases for future updates to address potential vulnerabilities

Technical summary

Memory corruption in Network in Google Chrome prior to 156.0.8078.47 allows remote attackers to execute arbitrary code outside the sandbox via crafted HTML pages. This Medium severity vulnerability, as rated by Chromium, affects Google Chrome and requires defenders to assess exposure and prioritize updates. The technical details are grounded in the official CVE Program record and NIST NVD detail page, highlighting the need for immediate attention to prevent potential exploitation through crafted HTML pages in Google Chrome.

Defensive priority

High

Recommended defensive actions

• Update Google Chrome to version 156.0.8078.47 or later
• Verify Chrome version and ensure it is up-to-date
• Monitor Chrome releases for future updates
• 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

Official CVE Program record (CVE-2026-113342) and NIST NVD detail page confirm memory corruption vulnerability in Google Chrome with a Medium Chromium security severity. Evidence is limited to publicly available details from these sources. Defenders should verify Chrome version and ensure it is up-to-date to prevent exploitation. The CVE record was published on 2026-10-20T21:02:31.718Z and has not been modified since then.

Sources and 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.