CVE-2011-4140: The CSRF protection mechanism in Django through 1.2.7 and 1.3.x through 1.3.1 does not properly handle web-...

Security readout for executives and security teams

This is an old Django CSRF weakness tied to unsafe web-server handling of arbitrary HTTP Host headers. If an affected Django site trusted hostile Host values, an attacker could cause unauthenticated forged requests from a victim’s browser using DNS and JavaScript. Business urgency depends on whether any legacy Django 1.2 or 1.3 deployments remain exposed. Exposure is most likely in legacy Django 1.2 or 1.3 applications behind web servers or proxies that accept arbitrary Host headers. Modern Django deployments are unlikely to be affected, but old vendor packages or unsupported internal systems should be checked. Prioritize if the organization still runs legacy Django or old Linux distribution packages. For current maintained Django stacks, this should be a hygiene verification item rather than an emergency response. Mitigation focus: Identify any Django 1.2 or 1.3 deployments.; Review Django and OS vendor advisories for fixed package versions.; Restrict web servers and proxies to expected Host names..

Prepared

Jun 27, 2026, 17:48 UTC (UTC+00:00)

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