Vulnerability-Lookup

FKIE_CVE-2026-2611

Vulnerability from fkie_nvd - Published: 2026-05-19 10:16 - Updated: 2026-10-14 20:10

Severity

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

Summary

In MLflow version 3.9.0, the MLflow Assistant feature introduced improper origin validation in its /ajax-api endpoints. This vulnerability allows a remote attacker to exploit cross-origin requests from a malicious webpage to interact with the MLflow Assistant running on a victim's local machine. By bypassing the loopback-only restriction, the attacker can modify the Assistant's configuration to enable full access, which in turn allows the execution of arbitrary commands via the Claude Code sub-agent. This issue is resolved in version 3.10.0.

References

URL	Tags
security@huntr.dev	https://github.com/mlflow/mlflow/commit/8f9c8a53af90842944101eb8b7d60706822c81bc	Patch
security@huntr.dev	https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5a	Exploit, Third Party Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://access.redhat.com/security/cve/CVE-2026-2611
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://bugzilla.redhat.com/show_bug.cgi?id=2479797
134c704f-9b21-4f2e-91b3-4a467353bcc0	https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5a	Exploit, Third Party Advisory
0b0ca135-0b70-47e7-9f44-1890c2a1c46c	https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2611.json

Impacted products

	Vendor	Product	Version
	lfprojects	mlflow	*

JSON

To clipboard

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      "value": "In MLflow version 3.9.0, the MLflow Assistant feature introduced improper origin validation in its /ajax-api endpoints. This vulnerability allows a remote attacker to exploit cross-origin requests from a malicious webpage to interact with the MLflow Assistant running on a victim\u0027s local machine. By bypassing the loopback-only restriction, the attacker can modify the Assistant\u0027s configuration to enable full access, which in turn allows the execution of arbitrary commands via the Claude Code sub-agent. This issue is resolved in version 3.10.0."
    },
    {
      "lang": "es",
      "value": "En la versi\u00f3n 3.9.0 de MLflow, la caracter\u00edstica MLflow Assistant introdujo una validaci\u00f3n de origen incorrecta en sus endpoints /ajax-API. Esta vulnerabilidad permite a un atacante remoto explotar solicitudes de origen cruzado desde una p\u00e1gina web maliciosa para interactuar con el MLflow Assistant que se ejecuta en la m\u00e1quina local de una v\u00edctima. Al eludir la restricci\u00f3n de solo bucle invertido, el atacante puede modificar la configuraci\u00f3n del Assistant para habilitar el acceso completo, lo que a su vez permite la ejecuci\u00f3n de comandos arbitrarios a trav\u00e9s del subagente Claude Code. Este problema se resuelve en la versi\u00f3n 3.10.0."
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  "lastModified": "2026-10-14T20:10:00.190",
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}

CVE-2026-2611 (GCVE-0-2026-2611)

Vulnerability from cvelistv5 – Published: 2026-05-19 09:16 – Updated: 2026-07-15 02:49

Title

Improper Origin Validation in mlflow/mlflow

Summary

Severity

9.6 (Critical)


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

9.6 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/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 2026-05-19 13:26 UTC

CWE

CWE-346 - Origin Validation Error
CWE-940 - Improper Verification of Source of a Communication Channel

Assigner

@huntr_ai CNA under the mitre root

CNA scorecard C 65/100 over 41 records in the last 180 days details

References

5 references

URL	Tags
https://huntr.com/bounties/8462addd-b464-4a84-b6a…
https://github.com/mlflow/mlflow/commit/8f9c8a53a…
https://access.redhat.com/security/cve/CVE-2026-2611	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2479797	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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            "time": "2026-05-19T11:01:40.655Z",
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            "lang": "en",
            "time": "2026-05-19T09:16:42.745Z",
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    "dateReserved": "2026-02-17T02:36:47.412Z",
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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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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