The model file exhibits behavior consistent with loading code or model artifacts from an unexpected or external location, bypassing standard model loading and validation processes.
Model sideloading can allow adversaries to introduce unvalidated or malicious components at runtime, potentially enabling hidden functionality, obfuscating payloads, or circumventing security checks applied to the original model artifact.
Model sideloading is generally not expected behavior; however, in limited cases it may be observed in experimental or custom loading workflows, emphasizing the need to validate whether such behavior is intentional and authorized.
- Treat the model as untrusted until the source and purpose of the sideloaded artifacts are fully validated.
- Identify and review all external locations or resources referenced during model loading to determine whether they are authorized and secured.
- Engage the team responsible for model development or deployment to confirm whether sideloading behavior is expected or documented.
- Perform static analysis of the model file and associated loading logic to identify any hidden or obfuscated payloads.
- If feasible, execute the model in a sandboxed or isolated environment to observe runtime behavior and confirm whether unauthorized artifacts are loaded.
- If sideloaded components cannot be validated as legitimate, remove the model from the deployment pipeline.
- If the model is already deployed, escalate according to established security and incident response procedures to assess impact and determine appropriate containment or remediation actions.