GHSA-wqmh-qccw-pqwf

Suggest an improvement
Source
https://github.com/advisories/GHSA-wqmh-qccw-pqwf
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-wqmh-qccw-pqwf/GHSA-wqmh-qccw-pqwf.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-wqmh-qccw-pqwf
Aliases
Published
2026-10-20T00:31:59Z
Modified
2026-10-23T21:45:04Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L CVSS Calculator
  • 8.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
MLflow FileStore trace IDs allow path traversal and arbitrary file writes
Details

MLflow 3.17.1 and earlier contains a path traversal vulnerability in the FileStore tracking backend that allows unauthenticated attackers to control filesystem paths by submitting a crafted trace ID containing traversal sequences to the POST /api/3.0/mlflow/traces endpoint. Attackers can exploit FileStore.start_trace() to write trace_info.yaml, request_metadata, and tag files with attacker-controlled metadata outside the intended experiment trace directory, subject to the server process's filesystem permissions. FileStore is the default tracking backend before MLflow 3.7.0 and opt-in thereafter (the default changed to a SQLite database), so deployments in the earlier part of the affected range are vulnerable without special configuration while later ones are affected only when FileStore is explicitly selected.

Database specific 
{
    "cwe_ids":  [
        "CWE-22"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-10-23T21:34:10Z",
    "nvd_published_at":  "2026-10-19T22:17:11Z",
    "severity":  "HIGH"
}
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
0 Unknown introduced version / All previous versions are affected
Fixed
3.17.2

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
2.11.5
2.12.0
2.12.1
2.12.2
2.13.0
2.13.1
2.13.2
2.13.3
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
3.11.0rc0
3.11.0rc1
3.11.0
3.11.1
3.12.0rc0
3.12.0
3.13.0rc0
3.13.0
3.14.0
3.15.0
3.15.1
3.15.2
3.16.0
3.16.1
3.17.0
3.17.1

Database specific

last_known_affected_version_range 
"<= 3.17.1"
source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-wqmh-qccw-pqwf/GHSA-wqmh-qccw-pqwf.json"