CVE-2024-2952: LiteLLM

Critical severity, CVSS 9.8. EPSS: 1.3% chance of exploitation in the next 30 days.

BerriAI/litellm is vulnerable to Server-Side Template Injection (SSTI) via the `/completions` endpoint. The vulnerability arises from the `hf_chat_template` method processing the `chat_template` parameter from the `tokenizer_config.json` file through the Jinja template engine without proper sanitization. Attackers can exploit this by crafting malicious `tokenizer_config.json` files that execute arbitrary code on the server.

Affected products

• LiteLLM LiteLLM: before 1.34.42 (fixed in 1.34.42)

Published 2024-04-10. Last modified 2026-06-17.