CVE-2026-109153

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Source
https://cve.org/CVERecord?id=CVE-2026-109153
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109153.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-109153
Published
2026-10-13T10:00:20Z
Modified
2026-10-15T02:47:21Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X CVSS Calculator
Summary
MosaicML Composer Checkpoint Extraction checkpoint.py tarball.extractall path traversal
Details

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.

Database specific 
{
    "cna_assigner":  "VulDB",
    "cwe_ids":  [
        "CWE-22"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109153.json"
}
References

Affected packages

Git / github.com/mosaicml/composer

Affected ranges

Type
GIT
Repo
https://github.com/mosaicml/composer
Events
Introduced
beed9b19983e170aa53cda02136ba1eb1513eede
Last Affected
4bfb5fc44b8bbde26b035a43b9311003013a4252
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0.32.0"
        },
        {
            "last_affected":  "0.32.0"
        },
        {
            "introduced":  "0.32.1"
        },
        {
            "last_affected":  "0.32.1"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

0.*
0.32.0
0.32.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-109153.json"