PYSEC-2026-419

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/mlflow/PYSEC-2026-419.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-419
Aliases
Published
2026-06-29T11:50:48.019340Z
Modified
2026-07-01T20:22:58.301401Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
mlflow: FastAPI job endpoints under `/ajax-api/3.0/jobs/*` are not protected by authentication or authorization
Details

In mlflow/mlflow, the FastAPI job endpoints under /ajax-api/3.0/jobs/* are not protected by authentication or authorization when the basic-auth app is enabled. This vulnerability affects the latest version of the repository. If job execution is enabled (MLFLOW_SERVER_ENABLE_JOB_EXECUTION=true) and any job function is allowlisted, any network client can submit, read, search, and cancel jobs without credentials, bypassing basic-auth entirely. This can lead to unauthenticated remote code execution if allowed jobs perform privileged actions such as shell execution or filesystem changes. Even if jobs are deemed safe, this still constitutes an authentication bypass, potentially resulting in job spam, denial of service (DoS), or data exposure in job results.

References

Affected packages

PyPI / mlflow

Package

Name
mlflow
View open source insights on deps.dev
Purl
pkg:pypi/mlflow

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Last affected
3.10.1

Affected versions

0.*
0.0.1
0.1.0
0.2.0
0.2.1
0.3.0
0.4.0
0.4.1
0.4.2
0.5.0
0.5.1
0.5.2
0.6.0
0.7.0
0.8.0
0.8.1
0.8.2
0.9.0
0.9.0.1
0.9.1
1.*
1.0.0
1.1.0
1.1.1.dev0
1.2.0
1.3.0
1.4.0
1.5.0
1.6.0
1.7.0
1.7.1
1.7.2
1.8.0
1.9.0
1.9.1
1.10.0
1.11.0
1.12.0
1.12.1
1.13
1.13.1
1.14.0
1.14.1
1.15.0
1.16.0
1.17.0
1.18.0
1.19.0
1.20.0
1.20.1
1.20.2
1.21.0
1.22.0
1.23.0
1.23.1
1.24.0
1.25.0
1.25.1
1.26.0
1.26.1
1.27.0
1.28.0
1.29.0
1.30.0
1.30.1
2.*
2.0.0rc0
2.0.0
2.0.1
2.1.0
2.1.1
2.2.0
2.2.1
2.2.2
2.3.0
2.3.1
2.3.2
2.4.0
2.4.1
2.4.2
2.5.0
2.6.0
2.7.0
2.7.1
2.8.0
2.8.1
2.9.0
2.9.1
2.9.2
2.10.0
2.10.1
2.10.2
2.11.0
2.11.1
2.11.2
2.11.3
2.11.4
2.12.0
2.12.1
2.12.2
2.13.0
2.13.1
2.13.2
2.14.0rc0
2.14.0
2.14.1
2.14.2.dev0
2.14.2
2.14.3
2.15.0rc0
2.15.0
2.15.1
2.16.0
2.16.1
2.16.2
2.17.0rc0
2.17.0
2.17.1
2.17.2
2.18.0rc0
2.18.0
2.19.0rc0
2.19.0
2.20.0rc0
2.20.0
2.20.1
2.20.2
2.20.3
2.20.4
2.21.0rc0
2.21.0
2.21.1
2.21.2
2.21.3
2.22.0rc0
2.22.0
2.22.1
2.22.2
2.22.3
2.22.4
2.22.5
3.*
3.0.0rc0
3.0.0rc1
3.0.0rc2
3.0.0rc3
3.0.0
3.0.1
3.1.0rc0
3.1.0
3.1.1
3.1.2
3.1.3
3.1.4
3.2.0rc0
3.2.0
3.3.0rc0
3.3.0
3.3.1
3.3.2
3.4.0rc0
3.4.0
3.5.0rc0
3.5.0
3.5.1
3.6.0rc0
3.6.0
3.7.0rc0
3.7.0
3.8.0rc0
3.8.0
3.8.1
3.9.0rc0
3.9.0
3.10.0rc0
3.10.0
3.10.1

Database specific

source 
"https://github.com/pypa/advisory-database/blob/main/vulns/mlflow/PYSEC-2026-419.yaml"