Buffer overflow in Vllm-Project Vllm
CVE-2026-105775
A security vulnerability has been detected in vllm-project vLLM up to 0.31.0. This impacts the function conv_ssm_forward of the file vllm/model_executor/layers/mamba/mamba_mixer2.py of the component Completions Request Handler. The manipulation leads to out-of-bounds read. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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
- Vllm-Project Vllm — versions 0.1, 0.10, 0.11
Weakness classification (CWE)
References
- vuldb.com/vuln/413808 (technical-description, vdb-entry)
- vuldb.com/vuln/413808/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-105775 (third-party-advisory)
- vuldb.com/submit/992291 (third-party-advisory)
- github.com/vllm-project/vllm/issues/57266 (issue-tracking, exploit)
- github.com/vllm-project/vllm/ (product)
Frequently asked questions
- What is CVE-2026-105775?
- CVE-2026-105775 is a medium-severity vulnerability in Vllm-Project Vllm, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 4.3/10. Published 2026-10-06.
- How severe is CVE-2026-105775?
- Medium severity. CVSS v3 base score is 4.3 out of 10.