CVE-2008-4198: Opera before 9.52, when rendering an http page that has loaded an https page into a frame, displays a padlo...

Security readout for executives and security teams

This is a browser trust indicator flaw in old Opera versions before 9.52. A malicious HTTP page could make Opera show a padlock and secure-connection information after loading HTTPS content in a frame, potentially misleading users into trusting an insecure page. Exposure is likely limited to legacy environments still running Opera versions earlier than 9.52, including old desktops, kiosks, VMs, or preserved application stacks. Modern supported browsers are not identified as affected in the source bundle. Treat this as a legacy hygiene issue unless the organization still uses affected Opera versions. It can support phishing or unsafe user actions, but the provided evidence does not indicate active exploitation or a high-impact technical compromise path. Mitigation focus: Upgrade any affected Opera installation to 9.52 or later.; Remove unsupported legacy Opera versions from managed endpoints.; Check vendor changelogs and advisories for platform-specific guidance..

Prepared

Jun 28, 2026, 11:59 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.