Vulnerability-Lookup

FKIE_CVE-2026-2651

Vulnerability from fkie_nvd - Published: 2026-05-25 07:16 - Updated: 2026-07-21 19:10

Severity

9.0 (Critical) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Summary

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.

References

URL	Tags
security@huntr.dev	https://github.com/mlflow/mlflow/commit/d7290811d8f3c95366d80109424edc1fb1ad966f	Patch
security@huntr.dev	https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc	Exploit, Third Party Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/security/cve/CVE-2026-2651
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://bugzilla.redhat.com/show_bug.cgi?id=2481117
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc	Exploit, Third Party Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2651.json

Impacted products

	Vendor	Product	Version
	lfprojects	mlflow	*

JSON

To clipboard

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      "value": "A vulnerability in MLflow versions \u003c=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."
    },
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      "lang": "es",
      "value": "Una vulnerabilidad en las versiones de MLflow  =3.10.1.dev0 permite el acceso no autorizado a los puntos finales de carga multiparte (MPU) cuando el modo \u0027--serve-artifacts\u0027 est\u00e1 habilitado. La l\u00f3gica de autorizaci\u00f3n no aplica comprobaciones de permisos a nivel de recurso para los puntos finales \u0027/mlflow-artifacts/mpu/ \u0027, lo que permite a los atacantes sobrescribir artefactos pertenecientes a otros usuarios. Esto puede conducir a escrituras no autorizadas entre usuarios, envenenamiento de la cadena de suministro de modelos y ejecuci\u00f3n de c\u00f3digo arbitrario cuando se cargan modelos comprometidos. El problema est\u00e1 resuelto en la versi\u00f3n 3.10.0."
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}

CVE-2026-2651 (GCVE-0-2026-2651)

Vulnerability from cvelistv5 – Published: 2026-05-25 06:00 – Updated: 2026-07-15 02:49

Title

Missing Authorization Validation in mlflow/mlflow

Summary

Severity

9 (Critical)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

9 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-26 00:00 UTC

CWE

CWE-862 - Missing Authorization
CWE-1220 - Insufficient Granularity of Access Control

Assigner

@huntr_ai mitre root Scorecard

References

5 references

URL	Tags
https://huntr.com/bounties/65beb119-d3e0-4e03-af2…
https://github.com/mlflow/mlflow/commit/d7290811d…
https://access.redhat.com/security/cve/CVE-2026-2651	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2481117	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex

Impacted products

2 products

Vendor	Product	Version
mlflow	mlflow/mlflow	Affected: unspecified , < 3.10.0 (custom)
Red Hat	Red Hat OpenShift AI (RHOAI)	cpe:/a:redhat:openshift_ai

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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FKIE_CVE-2026-2651

CVE-2026-2651 (GCVE-0-2026-2651)

Tags

Sightings

Nomenclature

Related by attack behaviour