CVE-2026-113139 Google CVE debrief

Who should care

Defenders responsible for Google Chrome deployments, particularly those using Autofill, should assess exposure and prioritize patching to prevent potential sandbox escapes. This includes verifying exposure of Autofill users to potential sandbox memory reads, assessing and applying patches to prevent potential sandbox escapes, and monitoring for crafted HTML page attacks targeting Google Chrome Autofill. Additionally, defenders should review compensating

Why it matters

CVE-2026-113139 is a Medium-severity memory corruption vulnerability in Google Chrome's Autofill feature. Defenders should prioritize verifying exposure, applying patches, and monitoring for potential sandbox escapes.

• Verify exposure of Autofill users to potential sandbox memory reads
• Assess and apply patches to prevent potential sandbox escapes
• Monitor for crafted HTML page attacks targeting Google Chrome Autofill

Technical summary

The vulnerability, CVE-2026-113139, is a memory corruption issue in Google Chrome's Autofill feature. It could allow a remote attacker to potentially read memory inside the sandbox via a crafted HTML page. The issue was reported with a Medium severity level by the Chromium security team. The vulnerability affects Google Chrome deployments using Autofill, and defenders should assess exposure and prioritize patching to prevent potential sandbox escapes. There is limited information available on the specific technical details of the vulnerability.

Defensive priority

Defenders should prioritize verifying exposure and applying patches for Google Chrome Autofill users, assessing potential sandbox escapes.

Recommended defensive actions

• Verify and apply Google Chrome updates to version 156.0.8078.47 or later
• Assess exposure for Autofill users and prioritize patching
• Monitor for potential sandbox escape 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 memory corruption vulnerability in Google Chrome's Autofill feature. The Chromium security severity is reported as Medium. The vulnerability affects Google Chrome deployments using Autofill, and defenders should assess exposure and prioritize patching to prevent potential sandbox escapes. The issue was reported with a Medium severity level by the Chromium security team. There is limited information available on the specific technical details of the vulnerability, and defenders 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.