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Public proof of conceptFix available

CVE-2026-0596

A public proof of concept exists; no exploitation attested.

  • Published2026-03-31
  • Fixed in3.11.1
  • WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2026-03-3115:16CVE publishedNVD
  2. 2026-10-2319:23First public proof of conceptPoC-in-GitHub

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-0596?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-0596?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV · NVD
mlflow
BranchAffectedFixed in
3.11< 3.11.13.11.1
mlflow
BranchAffectedFixed in
3.9< 3.9.03.9.0
Lfprojects mlflow
BranchAffectedFixed in
—all versionsno fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update mlflow to 3.11.1

Detection

read 2026-10-23 19:24 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
1 repository, unverifiedSparshBiswas-AI/CVE-2026-0596-Reproduction
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionpoc2026-03-31
  • OpenCVESSVC decisionpoc—
  • NVDCVSS 3.17.8read 2026-10-23
  • CNACVSS 3.09.6read 2026-10-23
  • CNAweakness (CWE)CWE-78read 2026-10-23
  • FIRST EPSSEPSS score1.3 %2026-10-23
  • PoC-in-GitHubproof of concept1read 2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2026-03-31
Last Modified
2026-07-21
NVD status
Analyzed

Frequently asked questions

What is CVE-2026-0596?

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.

Is CVE-2026-0596 actively exploited?

A proof-of-concept exploit exists for CVE-2026-0596, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-0596?

CVE-2026-0596 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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