Vulnerability · Published Oct 6, 2026 · Assigned by VulDB
CVE-2026-105775vllm-project vLLM Completions Request mamba_mixer2.py conv_ssm_forward out-of-bounds
Medium 4.3
In plain English
A medium-severity out-of-bounds read in vLLM from vllm-project. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| vllm-project | vLLM | 0.10.20.30.40.50.60.70.8 |
Weakness: CWE-125, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C
References
- VDB-413808 | vllm-project vLLM Completions Request mamba_mixer2.py conv_ssm_forward out-of-bounds vdb-entry, technical-description
- VDB-413808 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-105775 | CVE Analysis and Report third-party-advisory
- Submit #992291 | vllm-project vLLM v0.27.1 Denial of Service third-party-advisory
- https://github.com/vllm-project/vllm/issues/57266 exploit, issue-tracking
- https://github.com/vllm-project/vllm/ product