CVE-2026-40217
HIGH
8.8
CVSS Score
Published: April 10, 2026 at 01:43 PM UTC
Updated: October 26, 2026 at 09:10 PM UTC
3 products affected across 3 vendorsLiteLLMLiteLLMLightspeed Core
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Severity
HIGH8.8
Exploit prediction
EPSS 16%
SSVC
PoC
Description
LiteLLM through 2026-04-08 allows remote attackers to execute arbitrary code via bytecode rewriting at the /guardrails/test_custom_code URI.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
50%
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (6)
ExploitMitigationThird Party Advisory
Source: cverecord
https://www.x41-dsec.de/lab/advisories/x41-2026-001-litellm/Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/errata/RHSA-2026:24866Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/errata/RHSA-2026:30056Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/security/cve/CVE-2026-40217Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://bugzilla.redhat.com/show_bug.cgi?id=2457301Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40217.jsonSSVC — Action Prioritization
SSVCPoCNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
8.8HIGHmitre
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-420CWE-94
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