CVE-2026-109153
mediumA vulnerability was detected in MosaicML Composer up to 0.32.1.
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.
CVSS
6.3
6.3 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L Severity source: NVD CVSS v3.1 (cna@vuldb.com)
Timeline (UTC)
Published: 2026-10-13 11:17
Modified: 2026-10-16 18:17
NVD status: Deferred
Last synced 1 day ago
Verified against the source API 2026-10-27 06:59 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/mosaicml/composer/ cna@vuldb.com
- https://github.com/mosaicml/composer/issues/3942 cna@vuldb.com
- https://vuldb.com/cve/CVE-2026-109153 cna@vuldb.com
- https://vuldb.com/submit/978647 cna@vuldb.com
- https://vuldb.com/vuln/416887 cna@vuldb.com
- https://vuldb.com/vuln/416887/cti cna@vuldb.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:59 UTC · record ↗