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Not in CISA KEV
HIGH severity

Insecure Temporary File in mlflowGHSA-vqj2-4v8m-8vrq

HIGHFix: mlflow/mlflow@61984e6

GHSA-vqj2-4v8m-8vrq is a high-severity (CVSS 8.2) CWE-377 vulnerability in mlflow. 1 public exploit reference exists, so weaponization risk is real. A fix is available for mlflow — see the affected versions and patch details below.

Also known asBIT-mlflow-2022-0736CVE-2022-0736PYSEC-2022-28
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Oct 11, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs75th percentile — riskier than 75% of all scored CVEsHighest risk
0.13%0.78%1.43%2.08%0.6%1.6%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

GHSA-vqj2-4v8m-8vrq by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,738 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected
🐍mlflow

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

mlflow prior to 1.23.1 contains an insecure temporary file. The insecure function tempfile.mktemp() is deprecated and mkstemp() should be used instead.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPImlflowall versions1.23.1pip install --upgrade 'mlflow==1.23.1'

Affected Products

1 product · 1 configurations
Application
mlflowlfprojects
< 1.23.1
range
Exploits & PoCs
1

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Insecure Temporary File in GitHub repository mlflow/mlflow prior to 1.23…

huntr.devNVDMar 2022

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for mlflow, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update mlflow to 1.23.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-vqj2-4v8m-8vrq is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

mlflow prior to 1.23.1 contains an insecure temporary file. The insecure function `tempfile.mktemp()` is deprecated and `mkstemp()` should be used instead.
O3 Security · Impact-Aware SCA

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Insecure Temporary File in mlflow (High 8.2)