CVE-2026-40217

⚠️ high

LiteLLM through 2026-04-08 allows remote attackers to execute arbitrary code via bytecode rewriting at the /guardrails/test_custom_code URI.

CVSS Score

8.8

High

EPSS Score

0.2

Exploit Probability

Published Date

2026-04-10

First Seen: 2026-04-11

This CVE is High Risk - more severe than 81.1% of all 328,009 vulnerabilities in our database.

#62,016

Top 25% most severe

Severity Percentile

🔍 Exploitation Status

Poc

Proof-of-concept available

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Total

Complete system compromise possible

SSVC data provided by CISA

Last Modified 2026-04-27

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE IDs (Weakness Types)

CWE-420

📦 Affected Products 1

Vendor	Product	Status	Affected Versions
litellm	litellm	Affected	< 2026-04-08

Third Party Advisory Exploit Mitigation

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-47101	⚠️ high	8.8	0.5	LiteLLM prior to 1.83.14 allows an authenticated internal_user to create API keys with access to routes that their role ...	2026-05-21
CVE-2026-47102	⚠️ high	8.8	0.4	LiteLLM prior to 1.83.10 allows a user to modify their own user_role via the /user/update endpoint. While the endpoint c...	2026-05-21
CVE-2026-42208	⛔ critical	9.8	37.4	LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From version 1.81.16 to before ver...	2026-05-08
CVE-2026-42271	⚠️ high	8.8	53.7	LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From version 1.74.2 to before vers...	2026-05-08
CVE-2026-35029	⚠️ high	8.8	0.2	LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.83.0, the /config/updat...	2026-04-06
CVE-2026-35030	⛔ critical	9.1	0.1	LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.83.0, when JWT authenti...	2026-04-06

These CVEs affect the same products