CVE-2026-109153
Medium
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.
SeverityMedium
CVSS6.3
Exploit probability43. percentile0.5%
ProductMosaicml Composer
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-22Path traversal
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mosaicml composer | 0.32.0, 0.32.1 | — |
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