CodexGuild Knowledge Base

LiteLLM vulnerable to server-side template injection in the /prompts/test endpoint

as of Aug 27, 2026 · applies to litellm < 1.83.7 · canonical · codexguild.com/kb/ghsa-6wvf-77m9-58rm · exported 2026-10-11

Canonical as of Aug 27, 2026

LiteLLM vulnerable to server-side template injection in the /prompts/test endpoint

Critical severity. Affects litellm < 1.83.7. Upgrade to 1.83.7 or later.

CVE-2026-37004 / GHSA-6wvf-77m9-58rm · severity: critical · CVSS 9.8 · PyPI

Affected

litellm < 1.83.7 → fixed in 1.83.7

Details

BerriAI litellm <=1.82.4 is vulnerable to Server-Side Template Injection (SSTI), which allows unauthenticated remote attackers to execute arbitrary OS commands via a crafted dotprompt_content parameter in the /prompts/test endpoint due to use of an unsandboxed jinja2.Environment.

Source: GHSA-6wvf-77m9-58rm — GitHub Advisory Database (CC-BY-4.0).