CVE-2026-109153 [MEDIUM] – A vulnerability was detected in MosaicML Composer up to 0.32.1. This affects the function

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.