CVE-2026-79721 - Vulnerability Details - OpenCVE

Code execution can occur in versions of the MLflow platform running version 0.0.1 or newer, enabling a maliciously crafted model artifact to execute arbitrary code on an end user's system when loaded by the project.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

No data.

No data.

No data.

References

Link	Providers
https://www.hiddenlayer.com/sai-security-advisory/2026-09-mlflow

History

Wed, 09 Sep 2026 14:45:00 +0000

Type	Values Removed	Values Added
Title		Arbitrary Code Execution via Malicious MLflow Model Artifacts

Tue, 08 Sep 2026 19:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 08 Sep 2026 18:30:00 +0000

Type	Values Removed	Values Added
Description		Code execution can occur in versions of the MLflow platform running version 0.0.1 or newer, enabling a maliciously crafted model artifact to execute arbitrary code on an end user's system when loaded by the project.
Weaknesses		CWE-829
References		https://www.hiddenlayer.com/sai-security-advisory/2026-09-mlflow
Metrics		cvssV4_0 `{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: HiddenLayer

Published: 2026-09-08T18:10:27.721Z

Updated: 2026-09-08T18:51:41.322Z

Reserved: 2026-08-25T13:43:20.741Z

Link: CVE-2026-79721

Vulnrichment

Updated: 2026-09-08T18:51:35.264Z

NVD

Status : Deferred

Published: 2026-09-08T19:19:51.383

Modified: 2026-09-09T15:41:24.427

Link: CVE-2026-79721

Redhat

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-79721", "assignerOrgId": "6f8de1f0-f67e-45a6-b68f-98777fdb759c", "state": "PUBLISHED", "assignerShortName": "HiddenLayer", "dateReserved": "2026-08-25T13:43:20.741Z", "datePublished": "2026-09-08T18:10:27.721Z", "dateUpdated": "2026-09-08T18:51:41.322Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "6f8de1f0-f67e-45a6-b68f-98777fdb759c", "shortName": "HiddenLayer", "dateUpdated": "2026-09-08T18:10:27.721Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-829", "description": "CWE-829 Inclusion of functionality from untrusted control sphere", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-251", "descriptions": [{"lang": "en", "value": "CAPEC-251 Local Code Inclusion"}]}], "affected": [{"vendor": "mlflow", "product": "mlflow", "packageName": "mlflow", "repo": "https://github.com/mlflow/mlflow/", "versions": [{"status": "affected", "version": "0.0.1", "lessThanOrEqual": "*", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Code execution can occur in versions of the MLflow platform running version 0.0.1 or newer, enabling a maliciously crafted model artifact to execute arbitrary code on an end user's system when loaded by the project.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Code execution can occur in versions of the MLflow platform running version 0.0.1 or newer, enabling a maliciously crafted model artifact to execute arbitrary code on an end user's system when loaded by the project."}]}], "references": [{"url": "https://www.hiddenlayer.com/sai-security-advisory/2026-09-mlflow"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.6, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-08T18:51:23.520310Z", "id": "CVE-2026-79721", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-08T18:51:41.322Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-79721", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-08T18:51:23.520310Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-08T18:51:35.264Z"}}], "cna": {"source": {"discovery": "UNKNOWN"}, "impacts": [{"capecId": "CAPEC-251", "descriptions": [{"lang": "en", "value": "CAPEC-251 Local Code Inclusion"}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.6, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"repo": "https://github.com/mlflow/mlflow/", "vendor": "mlflow", "product": "mlflow", "versions": [{"status": "affected", "version": "0.0.1", "versionType": "semver", "lessThanOrEqual": "*"}], "packageName": "mlflow", "defaultStatus": "unaffected"}], "references": [{"url": "https://www.hiddenlayer.com/sai-security-advisory/2026-09-mlflow"}], "x_generator": {"engine": "Vulnogram 1.0.5"}, "descriptions": [{"lang": "en", "value": "Code execution can occur in versions of the MLflow platform running version 0.0.1 or newer, enabling a maliciously crafted model artifact to execute arbitrary code on an end user's system when loaded by the project.", "supportingMedia": [{"type": "text/html", "value": "Code execution can occur in versions of the MLflow platform running version 0.0.1 or newer, enabling a maliciously crafted model artifact to execute arbitrary code on an end user's system when loaded by the project.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-829", "description": "CWE-829 Inclusion of functionality from untrusted control sphere"}]}], "providerMetadata": {"orgId": "6f8de1f0-f67e-45a6-b68f-98777fdb759c", "shortName": "HiddenLayer", "dateUpdated": "2026-09-08T18:10:27.721Z"}}}, "cveMetadata": {"cveId": "CVE-2026-79721", "state": "PUBLISHED", "dateUpdated": "2026-09-08T18:51:41.322Z", "dateReserved": "2026-08-25T13:43:20.741Z", "assignerOrgId": "6f8de1f0-f67e-45a6-b68f-98777fdb759c", "datePublished": "2026-09-08T18:10:27.721Z", "assignerShortName": "HiddenLayer"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageName": "mlflow", "product": "mlflow", "repo": "https://github.com/mlflow/mlflow/", "vendor": "mlflow", "versions": [{"lessThanOrEqual": "*", "status": "affected", "version": "0.0.1", "versionType": "semver"}]}], "source": "6f8de1f0-f67e-45a6-b68f-98777fdb759c"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Code execution can occur in versions of the MLflow platform running version 0.0.1 or newer, enabling a maliciously crafted model artifact to execute arbitrary code on an end user's system when loaded by the project."}], "id": "CVE-2026-79721", "lastModified": "2026-09-09T15:41:24.427", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "6f8de1f0-f67e-45a6-b68f-98777fdb759c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-79721", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-08T18:51:23.520310Z", "version": "2.0.3"}}]}, "published": "2026-09-08T19:19:51.383", "references": [{"source": "6f8de1f0-f67e-45a6-b68f-98777fdb759c", "url": "https://www.hiddenlayer.com/sai-security-advisory/2026-09-mlflow"}], "sourceIdentifier": "6f8de1f0-f67e-45a6-b68f-98777fdb759c", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-829"}], "source": "6f8de1f0-f67e-45a6-b68f-98777fdb759c", "type": "Secondary"}]}