CVE-2026-113104 Google CVE debrief

Who should care

Defenders responsible for Google Chrome deployments should assess exposure and apply updates to prevent potential exploitation. The vulnerability allows remote attackers to potentially execute arbitrary code inside the sandbox via crafted HTML pages. Defenders should review and update incident response plans for potential sandbox escapes. Defenders should also monitor Google Chrome for suspicious activity and track exceptions and retest remediated assets.

Why it matters

CVE-2026-113104 is a high-severity memory corruption vulnerability in Google Chrome's Frames component. Defenders responsible for Google Chrome deployments should assess exposure and apply updates to prevent potential exploitation. The vulnerability allows remote attackers to potentially execute arbitrary code inside the sandbox via crafted HTML pages.

• Remote attackers may attempt to execute arbitrary code inside the sandbox
• Successful exploitation could lead to sandbox escapes
• Defenders must verify and apply Google Chrome updates to prevent exploitation
• Incident response plans should be reviewed and updated for potential sandbox escapes

Technical summary

Memory corruption vulnerability in Google Chrome's Frames component allows remote attackers to potentially execute arbitrary code inside the sandbox via crafted HTML pages. This issue was addressed in Google Chrome version 156.0.8078.47. The vulnerability has a high severity and defenders should assess exposure and apply updates to prevent potential exploitation. The CVE record was published on 2026-10-20T21:01:48.877Z and has not been modified since then. Defenders should verify and apply Google Chrome updates to prevent exploitation.

Defensive priority

High

Recommended defensive actions

• Assess exposure of Google Chrome versions prior to 156.0.8078.47
• Verify and apply Google Chrome updates to 156.0.8078.47 or later
• Monitor Google Chrome for suspicious activity
• Review and update incident response plans for potential sandbox escapes
• Track exceptions and retest remediated assets
• 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

Evidence notes

Official CVE Program record and NIST NVD detail page confirm memory corruption vulnerability in Google Chrome. Chromium security severity is High. The CVE record was published on 2026-10-20T21:01:48.877Z and has not been modified since then. Defenders should verify and apply Google Chrome updates to prevent exploitation. The vulnerability allows remote attackers to potentially execute arbitrary code inside the sandbox via crafted HTML pages.

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.