GCD AI RADAR
incidents/AIR-2026-0653

CVE-2026-40217: LiteLLM sandbox escape in custom-code guardrail

Attack on AI2 Disclosed vulnerabilityInfrastructure vulnerability

LiteLLM contains a sandbox escape vulnerability in its custom-code guardrail endpoint allowing arbitrary code execution. The issue was patched in version 1.83.11 by replacing the hand-rolled sandbox with RestrictedPython.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

Details

type
Attack on AI
An AI model, agent or AI-powered product was the thing exploited, abused or leaked.
categories
  • Infrastructure vulnerability
    CVEs and advisories in AI frameworks, inference servers, MCP servers, AI developer tools and hosting stacks.
owasp llm top 10
mitre atlas
no technique for these categories
Both rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
severity
2 · Disclosed vulnerability
CVE or vendor advisory, patched or patchable, no confirmed exploitation.
targets
Framework / tooling
products
LiteLLM
incident date
11 May 2026
first reported
10 Apr 2026
origin
GitHub Advisory Database
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
classifier confidence
0.95 · published at or above 0.80; see the methodology
tags
CVE-2026-40217 · sandbox-escape · rce
record
created 2026-10-18 07:00Z · updated 2026-10-18 10:04Z · json

Sources · 2

  1. 2026-04-10
    CVE-2026-40217: LiteLLM through 2026-04-08 allows remote attackers to execute arbitrary code via bytecode rewriting at the…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-40217
  2. 2026-05-11
    CVE-2026-40217: LiteLLM has a sandbox escape in custom-code guardrail
    GitHub Advisory Database · github.com/advisories/GHSA-wxxx-gvqv-xp7p

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