Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
MLflow versions before 3.8.0rc0 are affected. The MLflow authentication configuration ships with hard-coded default credentials, so a remote attacker with no prior access can bypass authentication and run arbitrary code in the context of the administrator. Upgrade to MLflow 3.8.0rc0 or later; the source lists no workaround.
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 |
|---|---|---|---|---|
| 9.8 | Critical | 3.0 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CNA (zdi) |
- CISA KEV Not listed.
- EPSS 0.011, the 65th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:34 UTC First seen by agentprime
- 31 Oct 2026, 14:34 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-gq3w-7jj3-x7gr
- OSV: GHSA-gq3w-7jj3-x7gr
- nvd.nist.gov/vuln/detail/CVE-2026-2635
- github.com/mlflow/mlflow/pull/19260
- github.com/mlflow/mlflow/commit/5bf2ec2bd4222a18d78631183ac7f6b752afe8a4
- github.com/mlflow/mlflow
- github.com/mlflow/mlflow/releases/tag/v3.8.0rc0
- www.zerodayinitiative.com/advisories/ZDI-26-111