MLflow allows unauthorized access to multipart upload endpoints when the `--serve-artifacts` mode is enabled

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

• CISA KEV Not listed.
• EPSS 0.0034, the 28th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 31 Oct 2026, 14:08 UTC First seen by agentprime
2. 31 Oct 2026, 14:08 UTC Confirmed by OSV

Sources

• GitHub Advisory Database: GHSA-8c7q-86fq-vvmh
• OSV: GHSA-8c7q-86fq-vvmh
• nvd.nist.gov/vuln/detail/CVE-2026-2651
• github.com/mlflow/mlflow/commit/d7290811d8f3c95366d80109424edc1fb1ad966f
• access.redhat.com/security/cve/CVE-2026-2651
• bugzilla.redhat.com/show_bug.cgi?id=2481117
• github.com/advisories/GHSA-8c7q-86fq-vvmh
• github.com/mlflow/mlflow
• github.com/pypa/advisory-database/tree/main/vulns/mlflow/PYSEC-2026-2220.yaml
• huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc
• security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2651.json

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.