CVE-2026-5881 Google CVE debrief

Who should care

Users of Google Chrome prior to version 147.0.7727.55 should update to the latest version to mitigate this vulnerability. This includes administrators responsible for managing Chrome deployments within their organizations, as well as individual users who may be exposed to malicious HTML pages. Security teams should review the vulnerability and implement additional security measures to prevent navigation restrictions bypass.

Technical summary

A remote attacker can bypass navigation restrictions via a crafted HTML page due to a policy bypass in LocalNetworkAccess in Google Chrome prior to 147.0.7727.55. This vulnerability could allow an attacker to access restricted areas or perform actions that would normally be blocked by the browser's security features. The vulnerability has a CVSS score of 6.5 and a severity of MEDIUM. Users of Google Chrome prior to version 147.0.7727.55 should update to the latest version to mitigate this vulnerability. Security teams should review the vulnerability and implement additional security measures to prevent navigation restrictions bypass. Evidence is limited to public sources and may not reflect the full scope or impact of this vulnerability. Defenders should verify affected systems and review vendor guidance for mitigation.

Defensive priority

Medium

Recommended defensive actions

• Update Google Chrome to version 147.0.7727.55 or later
• Review and implement additional security measures to prevent navigation restrictions bypass
• Monitor for any suspicious activity related to this vulnerability
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• 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

Evidence notes

The CVE record was published on 2026-04-08T22:16:27.753Z and has not been modified since then. The NVD entry is currently Analyzed. The vulnerability has a CVSS score of 6.5 and a severity of MEDIUM. Evidence is limited to public sources and may not reflect the full scope or impact of this vulnerability. Defenders should verify affected systems and review vendor guidance for mitigation.

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.