CVE-2026-113102 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments should assess exposure and prioritize updates. They should verify Chrome versions and update to 156.0.8078.47 or later to mitigate potential memory reads via crafted HTML pages. The who should care section is based on the CVE record and source item, and it is essential to review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.

Why it matters

Defenders should prioritize verifying Chrome versions and updating to 156.0.8078.47 or later to mitigate potential memory reads via crafted HTML pages.

• Potential memory reads via crafted HTML pages
• Verification of Chrome version updates required
• Sandbox configuration review recommended

Technical summary

An out-of-bounds read vulnerability exists in the FileSystem component of Google Chrome prior to version 156.0.8078.47. This vulnerability could allow a remote attacker to read memory inside the sandbox via a crafted HTML page. The vulnerability has a medium severity and defenders should assess exposure and prioritize updates. The technical summary is based on the CVE record and source item, and it is essential to review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance. The vulnerability affects Google Chrome prior to version 156.0.8078.47, and defenders should verify Chrome versions and update to 156.0.8078.47 or later.

Defensive priority

Defenders should prioritize verifying Chrome versions and updating to 156.0.8078.47 or later.

Recommended defensive actions

• Verify Chrome versions and update to 156.0.8078.47 or later
• Monitor for potential memory reads via crafted HTML pages
• Review and adjust sandbox configurations
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record and source item provide details on the out-of-bounds read vulnerability in FileSystem in Google Chrome prior to 156.0.8078.47. The vulnerability allows a remote attacker to read memory inside the sandbox via a crafted HTML page. The CVE record was published on 2026-10-20T21:02:01.722Z and has not been modified since then. The source item provides CVE details, and defenders should verify Chrome versions and update to 156.0.8078.47 or later to mitigate potential memory reads via crafted HTML pages. The evidence notes are

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.