Path Traversal in Ubiquitouslearning Mllm
CVE-2026-115800
A vulnerability was identified in UbiquitousLearning mllm up to 2.0.2. The affected element is the function load_model of the file pymllm/mobile/convertor/__init__.py of the component Convertor. The manipulation of the argument shard_file leads to path traversal. The attack needs to be performed locally. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Path Traversal (Directory Traversal)
Published .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Ubiquitouslearning Mllm — versions 2.0.0, 2.0.1, 2.0.2
Weakness classification (CWE)
References
- vuldb.com/vuln/425982 (technical-description, vdb-entry)
- vuldb.com/vuln/425982/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-115800 (third-party-advisory)
- vuldb.com/submit/1022230 (third-party-advisory)
- github.com/UbiquitousLearning/mllm/issues/711 (issue-tracking)
- github.com/user-attachments/files/33258553/poc.zip (exploit)
- github.com/UbiquitousLearning/mllm/ (product)
Frequently asked questions
- What is CVE-2026-115800?
- CVE-2026-115800 is a medium-severity vulnerability in Ubiquitouslearning Mllm, classified under Path Traversal. CVSS score: 5.3/10. Published 2026-10-23.
- How severe is CVE-2026-115800?
- Medium severity. CVSS v3 base score is 5.3 out of 10.