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criticalCVSS 9.6NVD status: Modified

CVE-2026-2611

MLflow: In MLflow version 3.9.0, the MLflow Assistant feature introduced improper origin validation in its /ajax-api endpoints.

ComponentMLflow
Severitycritical (CVSS 9.6)
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Published (NVD)2026-05-19
Last modified2026-07-15
Affected versions
mlflow >= 3.9.0, < 3.10.0
Fixed in3.10.0
WeaknessCWE-346CWE-940
CISA KEVnot listed

NVD description

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.

Does CVE-2026-2611 hit the version you run?Paste your docker-compose.yml, requirements.txt or package.json. The scanner checks your pinned versions against this CVE and every other one we track for MLflow.
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What to do

  • Upgrade MLflow to 3.10.0 or later.
  • Do not expose the component's API or UI to the internet without authentication in front of it.

Sources

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