CVE-2026-0596 json
Command Injection in mlflow/mlflow
published 2026-03-31 7 mo ago modified 2026-09-10 59 d ago also BIT-mlflow-2026-0596 , EUVD-2026-17415 , GHSA-rvhj-8chj-8v3c , PYSEC-2026-424
- cvss
- 9.6
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
A command injection vulnerability exists in mlflow/mlflow when serving a model with `enable_mlserver=True`. The `model_uri` is embedded directly into a shell command executed via `bash -c` without proper sanitization. If the `model_uri` contains shell metacharacters, such as `$()` or backticks, it allows for command substitution and execution of attacker-controlled commands. This vulnerability affects the latest version of mlflow/mlflow and can lead to privilege escalation if a higher-privileged service serves models from a directory writable by lower-privileged users.
Patch / fix
- pypi mlflow 3.9.0
- bitnami mlflow 3.11.1
- github.com/mlflow/mlflow@202fac4 commit
- github.com/mlflow/mlflow#19738 pull request
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
1.39% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- huntr.com https://huntr.com/bounties/2e905add-f9f5-4309-a3db-b17de5981285 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 9.6 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| GitHub | 3.0 | 9.6 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.0 | 9.6 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | mlflow | <3.9.0 |
3.9.0 |
| bitnami | mlflow | <3.11.1 |
3.11.1 |
Affected products
- mlflow mlflow/mlflow
Classification
- Weakness
-
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
-
github.com
/mlflow/mlflow/pull/19738
web
-
github.com
/mlflow/mlflow/commit/202fac4c83ccc8544c087c142b80196d0e60695c
web
-
huntr.com
/bounties/2e905add-f9f5-4309-a3db-b17de5981285
web, exploit, third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-0596
advisory, web
-
github.com
/mlflow/mlflow
package
-
pypi.org
/project/mlflow
package
-
github.com
/advisories/GHSA-rvhj-8chj-8v3c
advisory
Sources
- CVE List CVE-2026-0596
- GitHub Advisory GHSA-rvhj-8chj-8v3c
- NVD CVE-2026-0596
- OSV BIT-mlflow-2026-0596
- OSV PYSEC-2026-424
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