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CVE-2026-2611

Critical · CVSS 9.6

MLflow — Improper Origin Validation / Cross-Origin Request Forgery (CORF) leading to arbitrary command execution via Claude Code sub-agent

CVSS
9.6
nvd
EPSS
KEV
No
Class
other
CWE-346, CWE-940

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.

Search profile — drives PoC discovery

Symbols /ajax-apiMLflow AssistantClaude Code sub-agentloopback-only restrictionorigin validation8f9c8a53af90842944101eb8b7d60706822c81bc
Keywords CVE-2026-2611MLflowMLflow Assistantajax-apiorigin validation bypasscross-origin requestClaude Codesub-agentarbitrary command executionCWE-346CWE-940loopback bypasshuntr 8462addd-b464-4a84-b6a2-5529604e6e5a
Versions: 3.9.0 (fixed in 3.10.0)

Ranked PoCs (2) — best first

Heuristic ranking — not yet expert-vetted. Scored on structure + provenance, not execution.

Recall-favoring discovery; ranking by the Stage-4 scorer (Adam's rubric). Scanner/aggregator repos are hidden.

References

Status: enriched · ingested 2026-06-27T06:00:38.000Z · profiled 2026-07-01T00:30:14.000Z