GHSA-67c5-x5mf-rppq: mlflow (CVE-2026-2611)

Package	Ecosystem	Affected	Fixed in
mlflow	PyPI	>=3.9.0, <3.10.0	3.10.0

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

MLflow versions 3.9.0 up to but not including 3.10.0 are affected. The MLflow Assistant /ajax-api endpoints do not properly validate request origin, so a user visiting a malicious webpage can have their browser send cross-origin requests to a locally running Assistant. This lets an attacker change the Assistant's configuration to full access and then run arbitrary commands through its Claude Code sub-agent. Upgrade to MLflow 3.10.0 or later.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.6	Critical	3.0	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H	CNA (@huntr_ai)

CISA KEV Not listed.
EPSS 0.0038, the 32nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:09 UTC First seen by agentprime
31 Oct 2026, 14:09 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.