CVE-2026-105775 vllm-project vLLM Completions Request mamba_mixer2.py conv_ssm_forward out-of-bounds
Remote attackers can trigger an out-of-bounds read in vLLM's mamba mixer, potentially exposing memory or causing crashes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-105775?
CVE-2026-105775 is a medium-severity memory corruption vulnerability in vllm-project vLLM, published on 6 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Which versions are affected by CVE-2026-105775?
How do I fix CVE-2026-105775?
No fix published yet.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-105775 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-105775 exists.
Sources
Also known as GHSA-qx62-jwpf-rcpj.