PYSEC-2026-387
LiteLLM has Server-Side Template Injection vulnerability in /completions endpoint
At a glance
- Published
- Updated
- CVE
- CVE-2024-2952
- Aliases
- GHSA-46cm-pfwv-cgf8
- CVSS_V3
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
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 packages
| Package | Versions |
|---|---|
| PyPI · litellm | introduced 0, fixed 1.34.42 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2024-2952 ADVISORY
- https://github.com/BerriAI/litellm/issues/2949 WEB
- https://github.com/BerriAI/litellm/pull/2941 WEB
- https://github.com/BerriAI/litellm/commit/8a1cdc901708b07b7ff4eca20f9cb0f1f0e8d0b3 WEB
- https://github.com/BerriAI/litellm PACKAGE
- https://github.com/BerriAI/litellm/blob/0d803e13798db40aa7463e64a6bafaee386424f5/litellm/proxy/proxy_server.py#L2087 WEB
- https://huntr.com/bounties/a9e0a164-6de0-43a4-a640-0cbfb54220a4 WEB
- https://pypi.org/project/litellm PACKAGE
- https://github.com/advisories/GHSA-46cm-pfwv-cgf8 ADVISORY
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — PyPA Advisory Database |