CVE-2026-2651

CRITICALPre-NVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

Score 9.0 from GitHub Security Advisory (severity: CRITICAL) published 2026-05-26. a secondary CVSS source baseline 9.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.0Exploit: Elevated riskExposed: 0

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

A vulnerability in MLflow versions <=3.10.1.dev0 allows unauthorized access to multipart upload (MPU) endpoints when the --serve-artifacts mode is enabled. The authorization logic does not enforce resource-level permission checks for /mlflow-artifacts/mpu/* endpoints, enabling attackers to overwrite artifacts belonging to other users. This can lead to unauthorized cross-user writes, model supply chain poisoning, and arbitrary code execution when compromised models are loaded. The issue is resolved in version 3.10.0.

CVSS v3
9.0
EG Score
9.0(medium)
EG Risk
57(Track*)
EG Risk 57/100SSVC: Track*

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
Severity90% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
27%
KEV
Not listed

Published

May 25, 2026

Last Modified

July 21, 2026

Advisory Details (2)

Auto-updated Jun 1, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit d7290811d8f3 (mlflow/mlflow)

Fix landed in mlflow/mlflow commit d7290811d8f3 — awaiting tagged release

https://github.com/mlflow/mlflow/commit/d7290811d8f3c95366d80109424edc1fb1ad966f
generic

huntr - The world’s first bug bounty platform for AI/ML

https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc

Vendor Advisories for CVE-2026-2651(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
mlflow0.0.1 ... 3.9.0rc0 (173 versions)3.11.0rc0—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 48× 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 236 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-2651?
CVE-2026-2651 is a critical vulnerability published on May 25, 2026. A vulnerability in MLflow versions <=3.10.1.dev0 allows unauthorized access to multipart upload (MPU) endpoints when the --serve-artifacts mode is enabled. The authorization logic does not enforce resource-level permission checks for /mlflow-artifacts/mpu/* endpoints, enabling attackers to…
When was CVE-2026-2651 disclosed?
CVE-2026-2651 was first published in the National Vulnerability Database on May 25, 2026, with the most recent update on July 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-2651 actively exploited?
CVE-2026-2651 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 72.8% of all scored CVEs.
What is the CVSS score of CVE-2026-2651?
CVE-2026-2651 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2026-2651?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-2651, 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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