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
Trending — 3 sources updated this weekElevated
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
96%
KEV
Not listed

Published

April 23, 2026

Last Modified

July 14, 2026

Advisory Details (5)

Auto-updated Jul 25, 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 14× in last 7d / 47× 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 187 total refreshes for this CVE.

  1. 2026-07-26 14:54 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-25 14:18 UTCEPSS rescore
  4. 2026-07-25 14:17 UTCEPSS rescore
  5. 2026-07-24 14:17 UTCEPSS rescore
  6. 2026-07-23 14:18 UTCEPSS rescore
  7. 2026-07-23 14:18 UTCEPSS rescore
  8. 2026-07-23 03:07 UTCEG score recompute
  9. 2026-07-22 14:08 UTCEPSS rescore
  10. 2026-07-22 14:08 UTCEPSS rescore
  11. 2026-07-21 15:24 UTCEPSS rescore
  12. 2026-07-21 15:24 UTCEPSS rescore
  13. 2026-07-20 23:02 UTCOSV refresh
  14. 2026-07-20 17:08 UTCEPSS rescore
  15. 2026-07-18 10:04 UTCEPSS rescore
  16. 2026-07-18 10:04 UTCEPSS rescore
  17. 2026-07-16 17:03 UTCEPSS rescore
  18. 2026-07-16 17:03 UTCEPSS rescore
  19. 2026-07-15 16:57 UTCEPSS rescore
  20. 2026-07-15 16:57 UTCEPSS rescore
  21. 2026-07-15 02:00 UTCEPSS rescore
  22. 2026-07-15 02:00 UTCEPSS rescore
  23. 2026-07-14 17:20 UTCNVD updateCVSS v3 → 9.8
  24. 2026-07-13 22:30 UTCEPSS rescore
  25. 2026-07-12 05:46 UTCEPSS rescore
Show 75 more
  1. 2026-07-12 05:46 UTCEPSS rescore
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-09 19:10 UTCEPSS rescore
  4. 2026-07-08 15:15 UTCEPSS rescore
  5. 2026-07-08 15:15 UTCEPSS rescore
  6. 2026-07-07 13:46 UTCEPSS rescore
  7. 2026-07-06 16:27 UTCEPSS rescore
  8. 2026-07-06 16:27 UTCEPSS rescore
  9. 2026-07-06 02:23 UTCEPSS rescore
  10. 2026-07-06 02:23 UTCEPSS rescore
  11. 2026-07-05 02:30 UTCEPSS rescore
  12. 2026-07-04 06:31 UTCEPSS rescore
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-01 15:06 UTCEPSS rescore
  15. 2026-07-01 15:06 UTCEPSS rescore
  16. 2026-06-30 23:22 UTCEPSS rescore
  17. 2026-06-30 23:22 UTCEPSS rescore
  18. 2026-06-29 14:06 UTCEPSS rescore
  19. 2026-06-28 14:07 UTCEPSS rescore
  20. 2026-06-28 14:07 UTCEPSS rescore
  21. 2026-06-28 04:56 UTCEPSS rescore
  22. 2026-06-28 04:56 UTCEPSS rescore
  23. 2026-06-27 03:08 UTCEPSS rescore
  24. 2026-06-25 13:49 UTCEPSS rescore
  25. 2026-06-25 13:49 UTCEPSS rescore
  26. 2026-06-24 14:05 UTCEPSS rescore
  27. 2026-06-24 14:05 UTCEPSS rescore
  28. 2026-06-23 21:33 UTCEPSS rescore
  29. 2026-06-23 21:32 UTCEPSS rescore
  30. 2026-06-22 14:25 UTCEPSS rescore
  31. 2026-06-22 14:25 UTCEPSS rescore
  32. 2026-06-21 02:36 UTCMITRE cvelistV5CVSS v3 → 9.3
  33. 2026-06-21 01:59 UTCEPSS rescore
  34. 2026-06-21 01:59 UTCEPSS rescore
  35. 2026-06-19 19:25 UTCEPSS rescore
  36. 2026-06-19 19:25 UTCEPSS rescore
  37. 2026-06-18 17:52 UTCEPSS rescore
  38. 2026-06-17 17:53 UTCEPSS rescore
  39. 2026-06-17 17:53 UTCEPSS rescore
  40. 2026-06-16 17:52 UTCEPSS rescore
  41. 2026-06-15 17:48 UTCEPSS rescore
  42. 2026-06-15 06:42 UTCGHSA enrichment
  43. 2026-06-15 02:24 UTCGHSA enrichment
  44. 2026-06-14 23:18 UTCEPSS rescore
  45. 2026-06-14 20:39 UTCGHSA enrichment
  46. 2026-06-14 16:43 UTCGHSA enrichment
  47. 2026-06-14 12:17 UTCGHSA enrichment
  48. 2026-06-13 23:00 UTCEPSS rescore
  49. 2026-06-12 23:12 UTCEPSS rescore
  50. 2026-06-12 23:12 UTCEPSS rescore
  51. 2026-06-12 12:26 UTCGHSA enrichment
  52. 2026-06-12 06:16 UTCGHSA enrichment
  53. 2026-06-12 02:21 UTCGHSA enrichment
  54. 2026-06-11 22:26 UTCGHSA enrichment
  55. 2026-06-11 18:30 UTCGHSA enrichment
  56. 2026-06-11 14:24 UTCGHSA enrichment
  57. 2026-06-11 14:00 UTCEPSS rescore
  58. 2026-06-10 22:18 UTCEPSS rescore
  59. 2026-06-10 22:18 UTCEPSS rescore
  60. 2026-06-10 19:58 UTCGHSA enrichment
  61. 2026-06-10 16:02 UTCGHSA enrichment
  62. 2026-06-10 13:22 UTCEPSS rescore
  63. 2026-06-10 12:06 UTCGHSA enrichment
  64. 2026-06-10 08:10 UTCGHSA enrichment
  65. 2026-06-10 03:53 UTCGHSA enrichment
  66. 2026-06-09 23:57 UTCGHSA enrichment
  67. 2026-06-09 17:37 UTCGHSA enrichment
  68. 2026-06-09 13:41 UTCGHSA enrichment
  69. 2026-06-09 09:45 UTCGHSA enrichment
  70. 2026-06-09 03:23 UTCGHSA enrichment
  71. 2026-06-08 14:17 UTCEPSS rescore
  72. 2026-06-08 14:17 UTCEPSS rescore
  73. 2026-06-08 12:07 UTCGHSA enrichment
  74. 2026-06-08 08:05 UTCGHSA enrichment
  75. 2026-06-08 04:10 UTCGHSA enrichment

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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 3.5% 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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