CVE-2026-4372

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-26. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

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

A critical remote code execution vulnerability exists in all versions of the HuggingFace transformers library prior to version 5.3.0. The vulnerability allows an attacker to craft a malicious config.json file containing the _attn_implementation_internal field set to an attacker-controlled HuggingFace Hub repository ID. When a victim loads this model using the standard AutoModelForCausalLM.from_pretrained() API, the library downloads and executes arbitrary Python code from the attacker's repository with the victim's full OS privileges. This issue arises due to unfiltered deserialization of configuration attributes, insufficient sanitization of internal fields, and unsandboxed execution of downloaded kernels. The vulnerability bypasses the trust_remote_code security mechanism, is invisible to the victim, and exploits the standard documented usage pattern, making it particularly severe. Users are advised to upgrade to version 5.3.0 or later to mitigate this issue.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
38.0%
KEV
Not listed

Published

May 24, 2026

Last Modified

June 4, 2026

Advisory Details (2)

Auto-updated Jun 4, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

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github_commit

commit a7f8e7ff37d8 (huggingface/transformers)

Fix landed in huggingface/transformers commit a7f8e7ff37d8 — awaiting tagged release

https://github.com/huggingface/transformers/commit/a7f8e7ff37d87d1a1a0c8cf607971c607741452f

Vendor Advisories for CVE-2026-4372(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
transformers0.1 ... 5.2.0 (212 versions)5.3.0—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 75× 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 148 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-4372?
CVE-2026-4372 is a high vulnerability published on May 24, 2026. A critical remote code execution vulnerability exists in all versions of the HuggingFace transformers library prior to version 5.3.0. The vulnerability allows an attacker to craft a malicious config.json file containing the attnimplementationinternal field set to an attacker-controlled HuggingFace…
When was CVE-2026-4372 disclosed?
CVE-2026-4372 was first published in the National Vulnerability Database on May 24, 2026, with the most recent update on June 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4372 actively exploited?
CVE-2026-4372 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 38.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-4372?
CVE-2026-4372 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-4372?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4372, 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.

Dependency Blast Radius

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