CVE-2026-25874

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-04-23. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 16%CVSS: 9.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
16%
EPSS %ILE
97%
KEV
Not listed

Published

April 23, 2026

Last Modified

July 14, 2026

Advisory Details (5)

Auto-updated Sep 12, 2026
🔬 Proof of concept available. No patch confirmed yet. Sources: github_pr.
generic

LeRobot Unsafe Deserialization Remote Code Execution via gRPC | Advisories | VulnCheck

https://www.vulncheck.com/advisories/lerobot-unsafe-deserialization-remote-code-execution-via-grpc
github_pr

Fix: Replace unsafe pickle with safetensors + JSON in async inference

Upstream fix in progress (PR #3048 · huggingface/lerobot, state=open)

https://github.com/huggingface/lerobot/pull/3048
generic

Release 0.6.0 · Issue #3134 · huggingface/lerobot · GitHub

https://github.com/huggingface/lerobot/issues/3134
generic🟡 PoC Available

Security: Unsafe pickle deserialization in async inference enables Remote Code Execution (CWE-502) · Issue #3047 · huggingface/lerobot · GitHub

https://github.com/huggingface/lerobot/issues/3047
generic🟡 PoC Available

CVE-2026-25874: HuggingFace LeRobot Unauthenticated RCE via Pickle Deserialization in gRPC PolicyServer - Chocapikk's Cybersecurity Blog

https://chocapikk.com/posts/2026/lerobot-pickle-rce/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 5× in last 7d / 29× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 285 total refreshes for this CVE.

  1. 2026-09-13 16:47 UTCEPSS rescore
  2. 2026-09-12 15:01 UTCEPSS rescore
  3. 2026-09-11 14:52 UTCEPSS rescore
  4. 2026-09-10 09:34 UTCEPSS rescore
  5. 2026-09-08 22:00 UTCEPSS rescore
  6. 2026-09-07 16:01 UTCEPSS rescore
  7. 2026-09-06 13:47 UTCEPSS rescore
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-04 05:06 UTCEPSS rescore
  10. 2026-09-04 03:29 UTCOSV refresh
  11. 2026-09-02 14:11 UTCEPSS rescore
  12. 2026-09-01 13:53 UTCEPSS rescore
  13. 2026-09-01 04:39 UTCEPSS rescore
  14. 2026-08-30 19:17 UTCEPSS rescore
  15. 2026-08-30 01:22 UTCEPSS rescore
  16. 2026-08-28 21:41 UTCEPSS rescore
  17. 2026-08-27 14:25 UTCEPSS rescore
  18. 2026-08-26 14:46 UTCEPSS rescore
  19. 2026-08-25 13:48 UTCEPSS rescore
  20. 2026-08-23 00:19 UTCEPSS rescore
  21. 2026-08-21 23:49 UTCEPSS rescore
  22. 2026-08-20 22:55 UTCEPSS rescore
  23. 2026-08-19 17:03 UTCEPSS rescore
  24. 2026-08-18 13:48 UTCEPSS rescore
  25. 2026-08-17 14:56 UTCEG score recompute
Show 75 more
  1. 2026-08-17 14:56 UTCGHSA enrichment
  2. 2026-08-17 13:47 UTCEPSS rescore
  3. 2026-08-16 14:56 UTCEPSS rescore
  4. 2026-08-16 09:49 UTCGHSA enrichment
  5. 2026-08-16 05:53 UTCEG score recompute
  6. 2026-08-16 05:53 UTCGHSA enrichment
  7. 2026-08-16 02:14 UTCEPSS rescore
  8. 2026-08-15 01:30 UTCEPSS rescore
  9. 2026-08-14 23:50 UTCGHSA enrichment
  10. 2026-08-14 19:54 UTCGHSA enrichment
  11. 2026-08-14 15:59 UTCGHSA enrichment
  12. 2026-08-14 12:03 UTCGHSA enrichment
  13. 2026-08-14 08:08 UTCGHSA enrichment
  14. 2026-08-14 04:13 UTCEG score recompute
  15. 2026-08-14 04:13 UTCGHSA enrichment
  16. 2026-08-13 22:00 UTCEPSS rescore
  17. 2026-08-13 08:36 UTCGHSA enrichment
  18. 2026-08-13 01:48 UTCGHSA enrichment
  19. 2026-08-12 21:52 UTCGHSA enrichment
  20. 2026-08-12 17:57 UTCEG score recompute
  21. 2026-08-12 17:57 UTCGHSA enrichment
  22. 2026-08-12 13:50 UTCEPSS rescore
  23. 2026-08-12 00:35 UTCGHSA enrichment
  24. 2026-08-11 20:38 UTCGHSA enrichment
  25. 2026-08-11 16:43 UTCEG score recompute
  26. 2026-08-11 16:43 UTCGHSA enrichment
  27. 2026-08-11 13:42 UTCEPSS rescore
  28. 2026-08-11 06:08 UTCGHSA enrichment
  29. 2026-08-11 02:13 UTCGHSA enrichment
  30. 2026-08-10 12:13 UTCGHSA enrichment
  31. 2026-08-10 08:17 UTCGHSA enrichment
  32. 2026-08-10 04:22 UTCGHSA enrichment
  33. 2026-08-10 00:26 UTCGHSA enrichment
  34. 2026-08-09 20:30 UTCGHSA enrichment
  35. 2026-08-09 16:35 UTCEG score recompute
  36. 2026-08-09 16:35 UTCGHSA enrichment
  37. 2026-08-09 13:46 UTCEPSS rescore
  38. 2026-08-09 12:40 UTCGHSA enrichment
  39. 2026-08-09 07:20 UTCGHSA enrichment
  40. 2026-08-09 03:24 UTCEG score recompute
  41. 2026-08-09 03:24 UTCGHSA enrichment
  42. 2026-08-08 16:37 UTCEPSS rescore
  43. 2026-08-08 12:21 UTCGHSA enrichment
  44. 2026-08-08 08:17 UTCGHSA enrichment
  45. 2026-08-08 04:21 UTCGHSA enrichment
  46. 2026-08-08 00:26 UTCGHSA enrichment
  47. 2026-08-07 20:30 UTCGHSA enrichment
  48. 2026-08-07 16:35 UTCEG score recompute
  49. 2026-08-07 16:35 UTCGHSA enrichment
  50. 2026-08-07 12:40 UTCGHSA enrichment
  51. 2026-08-06 21:10 UTCGHSA enrichment
  52. 2026-08-06 17:14 UTCEG score recompute
  53. 2026-08-06 17:14 UTCGHSA enrichment
  54. 2026-08-06 13:46 UTCEPSS rescore
  55. 2026-08-06 11:26 UTCGHSA enrichment
  56. 2026-08-06 06:50 UTCGHSA enrichment
  57. 2026-08-06 02:54 UTCGHSA enrichment
  58. 2026-08-05 22:59 UTCEG score recompute
  59. 2026-08-05 22:59 UTCGHSA enrichment
  60. 2026-08-05 19:17 UTCEPSS rescore
  61. 2026-08-04 15:10 UTCEPSS rescore
  62. 2026-08-04 05:00 UTCGHSA enrichment
  63. 2026-08-04 01:05 UTCGHSA enrichment
  64. 2026-08-03 21:09 UTCGHSA enrichment
  65. 2026-08-02 23:18 UTCGHSA enrichment
  66. 2026-08-02 19:22 UTCGHSA enrichment
  67. 2026-08-02 15:27 UTCGHSA enrichment
  68. 2026-08-02 11:32 UTCEG score recompute
  69. 2026-08-02 11:31 UTCGHSA enrichment
  70. 2026-08-01 04:16 UTCEPSS rescore
  71. 2026-07-30 16:27 UTCEPSS rescore
  72. 2026-07-30 01:30 UTCEPSS rescore
  73. 2026-07-28 15:36 UTCEPSS rescore
  74. 2026-07-26 14:54 UTCEPSS rescore
  75. 2026-07-26 14:54 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-25874?
CVE-2026-25874 is a critical vulnerability published on April 23, 2026. 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…
When was CVE-2026-25874 disclosed?
CVE-2026-25874 was first published in the National Vulnerability Database on April 23, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-25874 actively exploited?
CVE-2026-25874 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 16% probability of exploitation in the next 30 days, which ranks it in the top 3.4% of all scored CVEs.
What is the CVSS score of CVE-2026-25874?
CVE-2026-25874 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-25874?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-25874, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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