How severe is CVE-2026-25874?

CVE-2026-25874 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-25874 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-25874?

CVE-2026-25874 affects Huggingface Lerobot. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-25874?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-25874 have an EU (EUVD) identifier?

Yes. CVE-2026-25874 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25292.

When was CVE-2026-25874 published?

CVE-2026-25874 was published on 2026-04-23 and last updated on 2026-06-17.

CVE-2026-25874

CVE-2026-25874 is a critical-severity vulnerability in Huggingface Lerobot with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 16% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 16% (96th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25292
Weakness: CWE-502
Affected product: Huggingface Lerobot
Published: 2026-04-23
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-25874?: 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.
How severe is CVE-2026-25874?: CVE-2026-25874 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-25874 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-25874?: CVE-2026-25874 affects Huggingface Lerobot. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-25874?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-25874 have an EU (EUVD) identifier?: Yes. CVE-2026-25874 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25292.
When was CVE-2026-25874 published?: CVE-2026-25874 was published on 2026-04-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:huggingface:lerobot:*:*:*:*:*:python:*:*

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