Submeter #886443: Simular AI Agent-S 0.3.2 Denial of Service

Agent-S contains a denial of service vulnerability in its OCR HTTP API. The /ocr/ endpoint accepts an unauthenticated JSON body with an img_bytes field, but does not enforce Content-Length, encoded field size, decoded byte size, image pixel count, or OCR execution limits before FastAPI/Pydantic reads and materializes the request body.
An attacker can send a single oversized OCR request that forces the service to buffer and process excessive attacker-controlled input before rejection. In a deployed environment, this can exhaust OCR worker memory, terminate the container, and make OCR-backed agent functionality unavailable to legitimate users.

• Fonte: ⚠️ https://github.com/hackerguopeng/cve/tree/main/AgentS_OCR_HTTP_Body_Image_DoS_Report
• Utilizador: hackerguopeng (UID 99623)
• Submissão: 11/07/2026 14h05 (há 2 meses)
• Moderação: 02/09/2026 16h16 (2 months later)
• Estado: Aceite
• Entrada VulDB: 398135 [simular-ai Agent-S até 0.3.2 OCR HTTP API ocr_server.py ImageData img_bytes Negação de Serviço]
• Pontos: 20