CVE-2026-92220CWE-400CWE-404denial-of-service

CVE-2026-92220

Medium · published September 16, 2026

CVSS v3.1
5.3
EPSS
1%
Percentile
52.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
EPSS
0.00701 · 52.7th percentile
Weaknesses
CWE-400 · Uncontrolled Resource Consumption; CWE-404 · Improper Resource Shutdown or Release
Published
2026-09-16T07:17Z
References (6)
https://github.com/vllm-project/vllm/ · [email protected]https://github.com/vllm-project/vllm/pull/50674 · [email protected]https://vuldb.com/cve/CVE-2026-92220 · [email protected]https://vuldb.com/submit/934149 · [email protected]https://vuldb.com/vuln/404470 · [email protected]https://vuldb.com/vuln/404470/cti · [email protected]
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 1%
    epss
  • 16 SEP 02:15Z
    vllm-project vLLM MoRIIO Acknowledgement moriio_connector.py MoRIIOWrapper._handle_release_message resource consumption
    cvelistv5