CVE-2011-4103: emitters.py in Django Piston before 0.2.3 and 0.2.x before 0.2.2.1 does not properly deserialize YAML data,...

Security readout for executives and security teams

This affects legacy Django Piston APIs that accept YAML input. The vulnerable code can deserialize YAML unsafely, allowing a remote attacker to run Python code in the application context. The business risk is highest for old internet-facing Django services still using affected Piston versions. Exposure is likely limited to legacy Django applications using Django Piston with vulnerable versions and reachable API endpoints that process YAML data. The bundle does not identify affected CPEs or broader product packaging beyond Django Piston and Debian guidance. Prioritize any internet-facing legacy Django service using Piston. The issue is old, but the impact is code execution, and unsupported dependencies can persist unnoticed in business-critical systems. Mitigation focus: Upgrade Django Piston to 0.2.3 or fixed 0.2.x release 0.2.2.1.; Apply vendor or distribution updates, including Debian DSA-2344 where applicable.; Disable YAML input handling for Piston APIs if it is not required..

Prepared

Jun 14, 2026, 06:22 UTC (UTC+00:00)

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