Medium
MosaicML Composer Checkpoint Extraction checkpoint.py tarball.extractall path traversal
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.
Announced Source revision 1
Original source ↗CVE-2026-109153
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-109153
Composer
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"cpes": [
"cpe:2.3:a:mosaicml:composer:*:*:*:*:*:*:*:*"
],
"vendor": "MosaicML",
"modules": [
"Checkpoint Extraction"
],
"product": "Composer",
"versions": [
{
"status": "affected",
"version": "0.32.0"
},
{
"status": "affected",
"version": "0.32.1"
}
]
}
]- Related CVEs
- CVE-2026-109153
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #32853 · Revision 1
- Added to Heist Feed
- Publisher date