---
id: "CVE-2026-124033"
page: "https://infrastack.ai/live/CVE-2026-124033"
kind: "vulnerability"
aliases: ["CVE-2026-124033"]
title: "The export-cluster-logs and export-image-logs commands in the AWS ParallelCluster CLI before version 3.16.0 contain\u2026"
severity: "medium"
cvss: 6.4
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["aws", "aws-parallelcluster", "hpc", "lab-disclosure", "package", "python"]
not_affected_if: ["bucket-access-restricted-to-trusted-users", "not-using-log-export-commands", "version-3.16.0-or-later"]
published_at: "2026-11-09T22:18:38+00:00"
first_seen_at: "2026-11-09T23:46:36+00:00"
updated_at: "2026-11-10T00:28:47+00:00"
sources: [{"source": "lab", "url": "https://aws.amazon.com/security/security-bulletins/rss/2026-174-aws/", "first_seen_at": "2026-11-09T23:46:36+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-124033", "first_seen_at": "2026-11-10T00:28:47+00:00"}]
exploit_sources: []
---

# The export-cluster-logs and export-image-logs commands in the AWS ParallelCluster CLI before version 3.16.0 contain…

Link for people: https://infrastack.ai/live/CVE-2026-124033 (this .md is for agents)

The export-cluster-logs and export-image-logs commands in the AWS ParallelCluster CLI before 3.16.0 contain a relative path traversal flaw. An attacker with write access to the log export S3 bucket can use a crafted object key to write files outside the intended directory, with names and content they control, using the privileges of the user running the command.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed version with `pip show aws-parallelcluster`; versions `>= 3.0.0` and `< 3.16.0` are affected.
- Check whether the log export commands `export-cluster-logs` or `export-image-logs` are used, and who can write to the S3 bucket used for log export.

## Fix

- aws-parallelcluster `3.16.0`
- Upgrade to the latest version and patch any forked or derivative code.

## Timeline

- 2026-11-09T23:46:36+00:00 lab https://aws.amazon.com/security/security-bulletins/rss/2026-174-aws/ — AWS: CVE-2026-124033 - Relative path traversal in the log export commands in AWS ParallelCluster CLI
- 2026-11-10T00:28:47+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-124033

## Documents

- [advisory] Vendor advisory: github.com https://github.com/aws/aws-parallelcluster/security/advisories/GHSA-h79v-mp93-644r
- [fix] Release notes: github.com https://github.com/aws/aws-parallelcluster/releases/tag/v3.16.0
- [mentions] AWS: CVE-2026-124033 - Relative path traversal in the log export commands in AWS ParallelCluster CLI https://aws.amazon.com/security/security-bulletins/rss/2026-174-aws/

## From the sources

CVE-2026-124033 - Relative path traversal in the log export commands in AWS ParallelCluster CLI

### CVE-2026-124033 - Relative path traversal in the log export commands in AWS ParallelCluster CLI

Bulletin ID: 2026-174-AWS Scope: AWS Content Type: Important (requires attention) Publication Date: 11/09/2026 13:00 PM PST

 Description:

AWS ParallelCluster CLI is an open source command line tool, distributed on PyPI as aws-parallelcluster, that customers use to create and manage HPC clusters on AWS.

We identified CVE-2026-124033, an issue where the export-cluster-logs and export-image-logs commands in the AWS ParallelCluster CLI before version 3.16.0 contain a relative path traversal issue. An authenticated remote user with write access to the log export Amazon S3 bucket could use a crafted S3 object key to write files outside the intended export directory on the machine running the command. The written files would have names and content controlled by a third party, and would be created with the privileges of the user running the command.

Impacted versions: >= 3.0.0 AND < 3.16.0

Resolution:

This issue has been addressed in aws-parallelcluster version 3.16.0. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes

Workarounds:

Ensure the Amazon S3 bucket used for log export is accessible by only trusted users.

References:

- CVE-2026-124033
- GHSA-h79v-mp93-644r

Acknowledgement:

We would like to thank Mohamed Abdelaal (0xmrma) for collaborating on this issue through the coordinated vulnerability disclosure process.

 Please email aws-security@amazon.com with any security questions or concerns.

---

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