CVE-2026-113255 Google CVE debrief

Who should care

Defenders responsible for Google Chrome deployments on Android, particularly those managing browser updates and security configurations, should assess exposure and prioritize verification and updates.

Why it matters

Defenders should prioritize verifying and updating Google Chrome on Android to prevent potential exploitation of the use-after-free vulnerability.

• Potential for arbitrary code execution inside the sandbox
• Need for verification and updates to Google Chrome on Android
• Importance of monitoring for potential exploitation attempts

Technical summary

The vulnerability is a use-after-free issue in CustomTabs in Google Chrome on Android prior to version 156.0.8078.47. This allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. The vulnerability impacts Android deployments of Google Chrome, particularly those managing browser updates and security configurations. Defenders should prioritize verifying and updating Google Chrome on Android to prevent potential exploitation attempts. The vulnerability is classified as Medium severity by Chromium.

Defensive priority

Defenders should prioritize verifying and updating Google Chrome on Android to version 156.0.8078.47 or later, and assess exposure for Android deployments.

Recommended defensive actions

• Verify and update Google Chrome on Android to version 156.0.8078.47 or later
• Assess exposure for Android deployments of Google Chrome
• 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, affected versions, and references to vendor updates. The vulnerability is a use-after-free issue in CustomTabs in Google Chrome on Android prior to version 156.0.8078.47. The source item and CVE record confirm the affected versions and provide references to vendor updates for Google Chrome stable channel. Defenders should verify and update Google Chrome on Android to version 156.0.8078.47 or later, and assess exposure for Android deployments.

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.