PYSEC-2026-387

vendorUSosv

LiteLLM has Server-Side Template Injection vulnerability in /completions endpoint

view advisory published 2026-06-29Licence: CC-BY-4.0

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.

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describes (1)

Related CVEs.

IDseverity exploitable
CVE-2024-2952US——
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 `…
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