CVE-2026-2611
CVE-2026-2611 · Improper Origin Validation in mlflow/mlflow
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 9.6 · Critical · EPSS 0.4% · Fix available
- Published
- Updated
Stack: python
Affected products and versions
mlflow/mlflow
- Versions
- ≥ unspecified, < 3.10.0: Affected (custom)
Update to 3.10.0
mlflow PyPI
- Versions
- 3.10.0rc0
- 3.9.0
- Affected ranges
- ECOSYSTEM: ≥ 3.9.0, < 3.10.0
Update to 3.10.0
Original sources
- https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5a
- https://github.com/mlflow/mlflow/commit/8f9c8a53af90842944101eb8b7d60706822c81bc
- https://access.redhat.com/security/cve/CVE-2026-2611
- https://bugzilla.redhat.com/show_bug.cgi?id=2479797
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2611.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-2611