What’s Vulnerable › Vulnerabilities

CVE-2026-92220: vllm-project vLLM MoRIIO Acknowledgement moriio_connector.py MoRIIOWrapper._handle_release_message resource consumption

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-16 · updated 2026-09-16
• Weakness: CWE-400

Description

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.

Affected products

• vllm-project vllm: 0.26.0, 0.27.0

References

• https://github.com/vllm-project/vllm/
• https://github.com/vllm-project/vllm/pull/50674
• https://vuldb.com/cve/CVE-2026-92220
• https://vuldb.com/submit/934149
• https://vuldb.com/vuln/404470
• https://vuldb.com/vuln/404470/cti

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