CVE-2026-37237 Denial of service in n/a
Remote attackers can cause denial of service in vLLM by providing URLs to arbitrarily large media files, exhausting server memory.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-37237?
CVE-2026-37237 is a high-severity denial of service vulnerability in Vllm Vllm, published on 28 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
vLLM up to and including 0.17.0 allows remote attackers to cause a Denial of Service via memory exhaustion. The AsyncMediaIO.fetch_audio and AsyncMediaIO.fetch_image functions in multimodal/inputs.py fetch user-supplied media URLs using aiohttp and call r.read() without enforcing a maximum response size, allowing an attacker to exhaust server memory by providing a URL to an arbitrarily large file.
Weakness: CWE-400
Which versions are affected by CVE-2026-37237?
It affects 1 product.
Products include Vllm Vllm.
How do I fix CVE-2026-37237?
No fix has been published for CVE-2026-37237 yet. Limit exposure of the affected software until one is available.
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-2026-37237 being exploited?
There is no known exploitation of CVE-2026-37237 in the wild and no public exploit code.
Other vulnerabilities in Vllm Vllm
- CVE-2025-32444 vLLM Vulnerable to Remote Code Execution via Mooncake Integration
- CVE-2026-22778 vLLM leaks a heap address when PIL throws an error
- CVE-2025-47277 vLLM Allows Remote Code Execution via PyNcclPipe Communication Service
- CVE-2024-11041 Remote Code Execution in vllm-project/vllm
- CVE-2026-48746 vLLM: OpenAI auth bypass
Sources
Also known as GHSA-63mw-rppr-f2pf.