# CVE-2026-118627: MLflow SHAP load_explainer Deserialization of Untrusted Data Remote Code Execution Vulnerability

Status: published. Published: 2026-11-03. Updated: 2026-11-03.

MLflow SHAP load_explainer Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of MLflow. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the loading of SHAP explainer models. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-30301.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- MLflow / MLflow: 3.11.2.dev0 (affected). Source: CNA: zdi

## Severity and prioritization

- CVSS 3.0: 7.8 (high); CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H; source: CNA: zdi

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-502

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.zerodayinitiative.com/advisories/ZDI-26-843/ (CNA: zdi; x_research-advisory)

## Provenance

- CNA: zdi: https://www.cve.org/CVERecord?id=CVE-2026-118627; retrieved 2026-11-04; source updated 2026-11-03

Revision: fd3a386ae315931ff6cf7031c0359d7efbb2557f074ae5aa3a030c7138bfd892

Canonical: https://y2.dev/cve/CVE-2026-118627

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