CVE-2026-115800

UbiquitousLearning mllm Convertor __init__.py load_model path traversal

Published Oct 23, 2026 CVSS 4.0 · 4.8 Medium EPSS < 1% KEV · Not listed
Description
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.

Analysis

AI-generated

Technical impact

A path traversal flaw exists in the load_model function of UbiquitousLearning mllm. By manipulating the shard_file argument, an attacker who can execute code locally can cause the library to open files outside the intended directory. The flaw exposes sensitive files or configuration data and can be exploited using the publicly available proof‑of‑concept. The vulnerability is limited to local execution and does not provide a remote code‑execution vector.

Affected Systems

The vulnerability affects the UbiquitousLearning mllm component up to version 2.0.2. Systems that run any of those releases and incorporate the Convertor module are susceptible.

Risk and Exploitability

The CVSS score of 4.8 indicates moderate severity. Because the attack requires local access, the overall threat is lower than a remote exploit, but it still allows a privileged attacker to read or modify files. EPSS data is not available and the vulnerability is not listed in the CISA KEV catalog. The publicly available exploit suggests that an internally compromised host could leverage the flaw, yet without prior host access the risk remains confined to the local environment.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update UbiquitousLearning mllm to the newest patched release once available.
  • Restrict the process running mllm to a sandboxed or chrooted environment that limits filesystem visibility to the expected directory.
  • Implement input validation that removes traversal sequences such as ".." from the shard_file argument before it is processed by load_model.

Generated by OpenCVE AI on October 23, 2026 at 21:30 UTC.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title UbiquitousLearning mllm Convertor __init__.py load_model path traversal
First Time appeared Ubiquitouslearning
Ubiquitouslearning mllm
Weaknesses CWE-22
CPEs cpe:2.3:a:ubiquitouslearning:mllm:*:*:*:*:*:*:*:*
Vendors & Products Ubiquitouslearning
Ubiquitouslearning mllm
References
Metrics cvssV2_0

{'score': 4.3, 'vector': 'AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:C'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'}

cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}

Weaknesses
  • CWE-22

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

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Oct 26, 2026, 5:42 PM
Reserved
Oct 23, 2026, 2:59 PM
Status
Deferred
Published
Oct 23, 2026, 9:17 PM
Modified
Oct 26, 2026, 6:17 PM