High · published January 12, 2026
⚡ An uncontrolled resource consumption vulnerability has been discovered in LlamaIndex up to version 0.12.2, turning untrusted prompts into potential chaos! 🔥 Think of it like a restaurant where customers can order an unlimited amount of dishes without any checks—one rogue diner could completely overwhelm the kitchen, leading to a service nightmare! An attacker can exploit this vulnerability to trigger excessive SQL operations, leading to CPU or memory exhaustion and causing a denial-of-service situation. This means your service could slow down or even crash, leaving legitimate users locked out during the busiest times!
Think of it like a restaurant where customers can order an unlimited amount of dishes without any checks—one rogue diner could completely overwhelm the kitchen, leading to a service nightmare! The issue arises in the VannaPack VannaQueryEngine's custom_query() logic, which generates and executes SQL statements based on user input without enforcing any execution limits.
An attacker can exploit this vulnerability to trigger excessive SQL operations, leading to CPU or memory exhaustion and causing a denial-of-service situation. This means your service could slow down or even crash, leaving legitimate users locked out during the busiest times! To secure your systems, upgrade LlamaIndex to version 0.12.3 or later. Additionally, implement strict user input validation to prevent untrusted prompts from being executed. Setting resource limits on SQL operations can also mitigate impact. You've got this! By following these steps, you'll be well on your way to protecting your systems from unnecessary chaos! 🛡️