What’s Vulnerable › Vulnerabilities

CVE-2026-25874: LeRobot Unsafe Deserialization Remote Code Execution via gRPC

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 15.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-23 · updated 2026-10-26
• Weakness: CWE-502

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.

Affected products

• Hugging Face LeRobot: through 0.5.1

References

• https://chocapikk.com/posts/2026/lerobot-pickle-rce/
• https://github.com/huggingface/lerobot/issues/3047
• https://github.com/huggingface/lerobot/issues/3134
• https://github.com/huggingface/lerobot/pull/3048
• https://www.vulncheck.com/advisories/lerobot-unsafe-deserialization-remote-code-execution-via-grpc

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