CVE-2026-124033 Relative path traversal in the log export commands in AWS ParallelCluster CLI
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-124033?
CVE-2026-124033 is a medium-severity vulnerability in aws-parallelcluster, published on 9 Nov 2026.
Official description
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.
To remediate this issue, users should upgrade to version 3.16.0 or later.
Weakness: CWE-23
Which versions are affected by CVE-2026-124033?
How do I fix CVE-2026-124033?
No fix has been published for CVE-2026-124033 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-124033 being exploited?
There is no known exploitation of CVE-2026-124033 in the wild and no public exploit code.
Sources
Also known as GHSA-h79v-mp93-644r.