CVE-2026-40217

EUVD-2026-21376
LiteLLM through 2026-04-08 allows remote attackers to execute arbitrary code via bytecode rewriting at the /guardrails/test_custom_code URI.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 26%
Affected Products (NVD)
VendorProductVersion
litellmlitellm
𝑥
≤ 2026-04-08
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.x41-dsec.de/lab/advisories/x41-2026-001-litellm/