CVE-2026-109153

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 v3 6.3 MEDIUM
CVSS v2.0 7.5 HIGH

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/mosaicml/composer/
https://github.com/mosaicml/composer/issues/3942
https://vuldb.com/cve/CVE-2026-109153
https://vuldb.com/submit/978647
https://vuldb.com/vuln/416887
https://vuldb.com/vuln/416887/cti

Configurations

No configuration.

History

13 Oct 2026, 11:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-13 11:17

Updated : 2026-10-16 18:17

NVD link : CVE-2026-109153

Mitre link : CVE-2026-109153

CVE.ORG link : CVE-2026-109153

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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