# CVE-2026-25874

> Vulnerability · severity: **CRITICAL** (CVSS 9.8).

## Description

LeRobot through 0.5.1 contains an unsafe deserialization vulnerability in the async inference pipeline where pickle.loads() is used to deserialize data received over unauthenticated gRPC channels without TLS in the policy server and robot client components. An unauthenticated network-reachable attacker can achieve arbitrary code execution on the server or client by sending a crafted pickle payload through the SendPolicyInstructions, SendObservations, or GetActions gRPC calls.

## Key facts

- **CVE ID:** CVE-2026-25874
- **Published:** 2026-04-23
- **CVSS severity:** CRITICAL
- **CVSS base score:** 9.8
- **CWE codes:** CWE-502

## Affected products

- `huggingface:lerobot`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-25874

## Citation

> AI Analytics. CVE-2026-25874. Retrieved 2026-07-18 from https://api.ai-analytics.org/cve/CVE-2026-25874. Derived from NIST NVD. Licensed CC0.

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