## CinemaTicketing API Exposed: Missing Input Validation Opens Door to Memory Exhaustion & DoS Attacks
A critical security gap in a major cinema ticketing platform's API exposes its servers to memory exhaustion and denial-of-service attacks. The vulnerability stems from a systemic lack of input length validation across core route handlers, allowing attackers to send massive payloads that can cripple system resources. This oversight affects key endpoints for user authentication, cinema searches, and data scraping, creating multiple vectors for exploitation.

The vulnerability, classified as P2 - Medium Severity, is documented in a GitHub security issue. It specifically impacts files handling search and filter parameters (`cinemas.ts`), theater ID arrays (`scrapers.ts`), and user credentials (`users.ts`, `auth.ts`). Attack scenarios detail how an attacker could craft a 10MB search query or repeatedly submit oversized payloads. The core weaknesses are identified as CWE-1284 (Improper Validation of Specified Quantity in Input) and CWE-400 (Uncontrolled Resource Consumption), leading directly to memory exhaustion, severe database performance degradation, and log pollution that can fill disk space.

This unpatched flaw places the entire service at risk of operational disruption. Without middleware to validate and limit input length, the platform's backend is vulnerable to simple, automated attacks that consume excessive resources. The exposure of authentication routes also raises secondary concerns about credential stuffing or brute-force attacks leveraging oversized inputs. The issue signals a fundamental oversight in the API's security posture, requiring immediate middleware implementation to enforce strict input boundaries across all public endpoints.
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- **Source**: GitHub Issues
- **Sector**: The Lab
- **Tags**: API Security, Denial of Service, Input Validation, CWE-1284, Memory Exhaustion
- **Credibility**: unverified
- **Published**: 2026-04-11 14:22:33
- **ID**: 60100
- **URL**: https://whisperx.ai/en/intel/60100