CVE-2026-2611In MLflow version 3.9.0, the MLflow Assistant feature introduced improper origin validation in its /ajax-api endpoints.
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No exploitation reported and no EPSS estimate yet.
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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 (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-346, CWE-940
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
lfprojects mlflow lfprojects:mlflow | from 3.9.0 before 3.10.0 | NVD |
References
- https://github.com/mlflow/mlflow/commit/8f9c8a53af90842944101eb8b7d60706822c81bcpatch
- https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5aexploit, third-party-advisory
- 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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.