CVE-2026-92365 vllm-project vllm thinking_budget_state.py algorithmic complexity
Remote attackers can cause denial of service in vLLM by exploiting inefficient algorithmic complexity in the thinking budget state module.
- 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-2026-92365?
CVE-2026-92365 is a medium-severity denial of service vulnerability in vllm-project vllm, published on 16 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was found in vllm-project vllm up to 0.29.0. Affected by this issue is some unknown functionality of the file vllm/v1/sample/thinking_budget_state.py. The manipulation results in inefficient algorithmic complexity. It is possible to launch the attack remotely. The pull request to fix this issue awaits acceptance.
Which versions are affected by CVE-2026-92365?
How do I fix CVE-2026-92365?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-92365 being exploited?
There is no known exploitation of CVE-2026-92365 in the wild and no public exploit code.
Sources
Also known as GHSA-mcqv-hjvx-mmqr.