CVE-2026-37004: LiteLLM server-side template injection in the test endpoint

# CVE-2026-37004: LiteLLM server-side template injection in the test endpoint

https://gcdradar.vercel.app/incidents/cve-2026-37004-litellm-server-side-template-injection-in-the · AIR-2026-0902 · closed 2026-08-27

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-08-27
- AI role: Attack on AI
- Products: LiteLLM
- CVE ids: CVE-2026-37004
- CVSS: 9.8

## Summary

LiteLLM contains a server-side template injection vulnerability in an unauthenticated endpoint due to unsandboxed environments. No exploitation has been confirmed.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-08-27: CVE-2026-37004: BerriAI litellm <=1.82.4 is vulnerable to Server-Side Template Injection (SSTI), which allows unauthenticated remote attackers to… (https://nvd.nist.gov/vuln/detail/CVE-2026-37004)
- 2026-08-27: CVE-2026-37004: LiteLLM vulnerable to server-side template injection in the /prompts/test endpoint (https://github.com/advisories/GHSA-6wvf-77m9-58rm)

## Sources

- 2026-08-27 GitHub Advisory Database: CVE-2026-37004: LiteLLM vulnerable to server-side template injection in the /prompts/test endpoint https://github.com/advisories/GHSA-6wvf-77m9-58rm
- 2026-08-27 NVD: CVE-2026-37004: BerriAI litellm <=1.82.4 is vulnerable to Server-Side Template Injection (SSTI), which allows unauthenticated remote attackers to… https://nvd.nist.gov/vuln/detail/CVE-2026-37004

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.