# CVE-2025-58755: MONAI has path traversal issue that may lead to arbitrary file writes

> Attackers can overwrite system files via malicious zip archives in MONAI, potentially leading to arbitrary code execution.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 8 Sep 2025
- **Updated:** 9 Sep 2025
- **Also known as:** GHSA-x6ww-pf9m-m73m, PYSEC-2025-140

## What is CVE-2025-58755?

CVE-2025-58755 is a high-severity path traversal vulnerability in Project-MONAI MONAI, published on 8 Sep 2025. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

MONAI (Medical Open Network for AI) is an AI toolkit for health care imaging. The extractall function `zip_file.extractall(output_dir)` is used directly to process compressed files. It is used in many places in the project. In versions up to and including 1.5.0, when the Zip file containing malicious content is decompressed, it overwrites the system files. In addition, the project allows the download of the zip content through the link, which increases the scope of exploitation of this vulnerability. As of time of publication, no known fixed versions are available.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2025-58755?

3 open source packages ship an affected version, including monai. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `monai` | PyPI | All versions | 1.5.1 |
| `monai` | PyPI | All versions | 1.5.1 |
| `monai` | PyPI | All versions | 1.5.1rc1 |

Products: Monai Medical Open Network for Ai.

## How do I fix CVE-2025-58755?

Upgrade monai to a fixed version for your release line: 1.5.1 or 1.5.1rc1.

## Is CVE-2025-58755 being exploited?

There is no known exploitation of CVE-2025-58755 in the wild and no public exploit code.

## Other vulnerabilities in Project-MONAI MONAI

- [CVE-2025-58756](https://insights.sbomify.com/CVE-2025-58756/): MONAI's unsafe torch usage may lead to arbitrary code execution (high 8.8)
- [CVE-2025-58757](https://insights.sbomify.com/CVE-2025-58757/): MONAI's unsafe use of Pickle deserialization may lead to RCE (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-58755 and fix it if it is affected.

What it is: CVE-2025-58755 is a high-severity path traversal vulnerability in Project-MONAI MONAI, published on 8 Sep 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-58755 in the wild and no public exploit code.

Affected packages and fixed versions:
- monai (PyPI): affected all versions; fixed in 1.5.1
- monai (PyPI): affected all versions; fixed in 1.5.1
- monai (PyPI): affected all versions; fixed in 1.5.1rc1

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-58755/ (Markdown: https://insights.sbomify.com/CVE-2025-58755/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-58755
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-58755
- OSV: https://osv.dev/vulnerability/CVE-2025-58755

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-58755/
Summaries are generated and may contain mistakes; the official description above is the record.