CVE-2026-113035 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome deployments should assess exposure and prioritize updating to the fixed version. This includes IT teams managing Chrome installations, security teams monitoring for potential exploitation attempts, and operators responsible for ensuring the security of Chrome-based systems. Defenders should also review and implement secure coding practices for HTML page handling and monitor for potential exploitation.

Why it matters

Defenders should care about CVE-2026-113035 because it involves an out-of-bounds read vulnerability in Google Chrome's API, which could lead to potential memory disclosure. The vulnerability has a medium severity according to Chromium and affects Chrome versions prior to 156.0.8078.47. Defenders responsible for managing Chrome deployments should assess exposure, prioritize updating to the fixed version, and monitor for potential exploitation attempts.

• Potential exposure to memory disclosure via crafted HTML pages
• Need to verify Chrome versions and update to 156.0.8078.47 or later
• Possible exploitation attempts require monitoring and incident response readiness

Technical summary

The vulnerability is an out-of-bounds read issue in Google Chrome's API, which could allow a remote attacker to potentially read memory inside the sandbox via a crafted HTML page. The issue was addressed in Chrome version 156.0.8078.47. This vulnerability affects Google Chrome deployments and requires immediate attention from defenders to assess exposure and update to the fixed version. The vulnerability has a medium severity according to Chromium and affects Chrome versions prior to 156.0.8078.47. Defenders should prioritize verifying Chrome versions and updating to the fixed version.

Defensive priority

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

Recommended defensive actions

• Verify Chrome version and update to 156.0.8078.47 or later
• Review and implement secure coding practices for HTML page handling
• Monitor for potential exploitation attempts
• 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
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and source item provide details on the vulnerability, affected versions, and references to vendor advisories. The vulnerability has been confirmed in Google Chrome versions prior to 156.0.8078.47. Defenders should verify Chrome versions and update to the fixed version to mitigate potential exposure. The source item and CVE record are the primary sources of information for this vulnerability.

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.