CVE-2026-113079 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments should assess exposure and apply patches to prevent potential exploitation. This includes IT teams managing browser updates, cybersecurity teams assessing vulnerability impact, and operational teams ensuring patch deployment.

Why it matters

Defenders should prioritize assessing exposure and applying patches for Google Chrome versions prior to 156.0.8078.47 due to a use-after-free vulnerability that could allow remote code execution inside the sandbox.

• Potential arbitrary code execution inside the sandbox
• Possible exploitation via crafted HTML pages
• Need for patching Google Chrome versions prior to 156.0.8078.47

Technical summary

The vulnerability is a use-after-free issue in Google Chrome's SiteIsolation, which could allow remote attackers to potentially execute arbitrary code inside the sandbox via a crafted HTML page. This vulnerability affects Google Chrome versions prior to 156.0.8078.47. The Chromium security severity is rated as Medium. Defenders should prioritize assessing exposure and applying patches for Google Chrome versions prior to 156.0.8078.47, as the vulnerability could potentially allow arbitrary code execution inside the sandbox.

Defensive priority

Defenders should prioritize assessing exposure and applying patches for Google Chrome versions prior to 156.0.8078.47, as the vulnerability could potentially allow arbitrary code execution inside the sandbox.

Recommended defensive actions

• Assess exposure of Google Chrome versions prior to 156.0.8078.47
• Apply patches for Google Chrome version 156.0.8078.47 or later
• Monitor for potential exploitation attempts
• 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 source item provide details on the vulnerability, including its description, affected versions, and references to additional information. The vulnerability is confirmed in Google Chrome versions prior to 156.0.8078.47. Defenders should verify the patch level of their Google Chrome deployments and ensure that version 156.0.8078.47 or later is deployed. The source item from cve_program_cvelist_v5 and CVE Program record provide additional context.

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.