CVE-2026-40217

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

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.x41-dsec.de/lab/advisories/x41-2026-001-litellm/	Exploit Mitigation Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:24866
https://access.redhat.com/errata/RHSA-2026:30056
https://access.redhat.com/security/cve/CVE-2026-40217
https://bugzilla.redhat.com/show_bug.cgi?id=2457301
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40217.json

Configurations

Configuration 1 (hide)

cpe:2.3:a:litellm:litellm:*:*:*:*:*:*:*:*

History

30 Jun 2026, 03:19

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:24866 - () https://access.redhat.com/errata/RHSA-2026:30056 - () https://access.redhat.com/security/cve/CVE-2026-40217 - () https://bugzilla.redhat.com/show_bug.cgi?id=2457301 - () https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40217.json -
CWE		CWE-94

17 Jun 2026, 10:44

Type	Values Removed	Values Added
References	~~() https://www.x41-dsec.de/lab/advisories/x41-2026-001-litellm/ - Third Party Advisory, Exploit, Mitigation~~	() https://www.x41-dsec.de/lab/advisories/x41-2026-001-litellm/ - Exploit, Mitigation, Third Party Advisory

27 Apr 2026, 23:00

Type	Values Removed	Values Added
CPE		cpe:2.3:a:litellm:litellm::::::::
References	~~() https://www.x41-dsec.de/lab/advisories/x41-2026-001-litellm/ -~~	() https://www.x41-dsec.de/lab/advisories/x41-2026-001-litellm/ - Third Party Advisory, Exploit, Mitigation
First Time		Litellm litellm Litellm

10 Apr 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-10 14:16

Updated : 2026-07-15 02:21

NVD link : CVE-2026-40217

Mitre link : CVE-2026-40217

CVE.ORG link : CVE-2026-40217

JSON object : View

Products Affected

litellm

litellm

CWE

CWE-420

Unprotected Alternate Channel

CWE-94

Improper Control of Generation of Code ('Code Injection')

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