RCE in Modeltc Lightx2v
CVE-2026-108943
A weakness has been identified in ModelTC LightX2V up to 0.5.0. Affected is the function AutoTokenizer.from_pretrained of the file lightx2v/models/runners/cosmos3/cosmos3_runner.py of the component Tokenizer. This manipulation of the argument auto_map causes code injection. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Published · last modified .
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
- Modeltc Lightx2v — versions 0.1, 0.2, 0.3
Weakness classification (CWE)
References
- vuldb.com/vuln/416768 (technical-description, vdb-entry)
- vuldb.com/vuln/416768/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-108943 (third-party-advisory)
- vuldb.com/submit/997679 (third-party-advisory)
- github.com/ModelTC/LightX2V/issues/1559 (issue-tracking, exploit)
- github.com/ModelTC/LightX2V/ (product)
Frequently asked questions
- What is CVE-2026-108943?
- CVE-2026-108943 is a medium-severity vulnerability in Modeltc Lightx2v, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 5.3/10. Published 2026-10-13.
- How severe is CVE-2026-108943?
- Medium severity. CVSS v3 base score is 5.3 out of 10.