Resource exhaustion in Vllm-Project Vllm
CVE-2026-92220
A vulnerability was found in vllm-project vLLM 0.26.0/0.27.0. Affected is the function MoRIIOConnectorScheduler.request_finished/MoRIIOConnectorWorker.get_finished/MoRIIOWrapper._handle_release_message of the file vllm/distributed/kv_transfer/kv_connector/v1/moriio/moriio_connector.py of the component MoRIIO Acknowledgement Handler. Performing a manipulation of the argument request_id/kv_transfer_params results in resource consumption. It is possible to initiate the attack remotely. The project was informed of the problem early through a pull request but has not reacted yet.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.007 (53.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Vllm-Project Vllm — versions 0.26.0, 0.27.0
Weakness classification (CWE)
References
- vuldb.com/vuln/404470 (technical-description, vdb-entry)
- vuldb.com/vuln/404470/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-92220 (third-party-advisory)
- vuldb.com/submit/934149 (third-party-advisory)
- github.com/vllm-project/vllm/pull/50674 (issue-tracking, patch)
- github.com/vllm-project/vllm/ (product)
Frequently asked questions
- What is CVE-2026-92220?
- CVE-2026-92220 is a medium-severity vulnerability in Vllm-Project Vllm, classified under Uncontrolled Resource Consumption. CVSS score: 5.3/10. Published 2026-09-16.
- How severe is CVE-2026-92220?
- Medium severity. CVSS v3 base score is 5.3 out of 10.