Description
A vulnerability was detected in MosaicML Composer up to 0.32.1. This affects the function tarball.extractall of the file composer/utils/checkpoint.py of the component Checkpoint Extraction. The manipulation results in path traversal. The attack can be executed remotely. The vendor was contacted early about this disclosure.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| MosaicML | Composer | 0.32.0, 0.32.1 | — |
References
- VDB-416887 | MosaicML Composer Checkpoint Extraction checkpoint.py tarball.extractall path traversal vdb-entry technical-description
- VDB-416887 | CTI Indicators (IOB, IOC, TTP, IOA) signature permissions-required
- CVE-2026-109153 | CVE Analysis and Report third-party-advisory
- Submit #978647 | mosaicml composer 0.32.1 Path Traversal third-party-advisory
- https://github.com/mosaicml/composer/issues/3942 issue-tracking
- https://github.com/mosaicml/composer/ product