CVE-2026-113010 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome installations should assess exposure and prioritize updating to the fixed version. This includes IT teams managing Chrome deployments, security teams monitoring for potential exploitation attempts, and operators responsible for maintaining browser updates. Exposure assessment and inventory checks are necessary to determine affected systems.

Why it matters

CVE-2026-113010 is a medium-severity vulnerability in Google Chrome's Extensions feature that allows out-of-bounds memory reads. Defenders managing Chrome installations should assess exposure, prioritize updates to version 156.0.8078.47 or later, and monitor for potential exploitation attempts.

• Remote attackers may be able to read sensitive memory information
• Successful exploitation could lead to unauthorized access to internal browser data
• Defenders need to verify Chrome version and update to mitigate the vulnerability
• Exposure assessment and inventory checks are necessary to determine affected systems

Technical summary

The vulnerability is an out-of-bounds read issue in the Extensions feature of Google Chrome prior to version 156.0.8078.47. This allows a remote attacker to read memory inside the sandbox via a crafted HTML page. The issue has a medium severity and defenders should prioritize updating to the fixed version. The vulnerability can be exploited by a remote attacker to read sensitive memory information. Successful exploitation could lead to unauthorized access to internal browser data. Defenders need to verify Chrome version and update to mitigate the vulnerability.

Defensive priority

Medium

Recommended defensive actions

• Assess exposure of Chrome installations to this vulnerability
• Verify Chrome version and update to 156.0.8078.47 or later if necessary
• Monitor for potential exploitation attempts targeting this vulnerability
• 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

Official CVE and NVD records describe an out-of-bounds read issue in Chrome's Extensions feature prior to version 156.0.8078.47. The CVE record was published on 2026-10-20T21:02:20.166Z and has not been modified since then. The vulnerability allows a remote attacker to read memory inside the sandbox via a crafted HTML page. Defenders should verify Chrome version and update to mitigate the 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.