vLLM versions through 0.29.0 contain a denial of service vulnerability in the NIXL connector's metadata handling for prefill/decode disaggregated deployments. Attackers can send requests with incomplete kv_transfer_params dictionary entries to trigger an uncaught KeyError in EngineCore scheduling, causing the decode engine to terminate and making all routed requests fail until manual restart.
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Affected Vendors & Products
Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 21 Sep 2026 22:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | vLLM versions through 0.29.0 contain a denial of service vulnerability in the NIXL connector's metadata handling for prefill/decode disaggregated deployments. Attackers can send requests with incomplete kv_transfer_params dictionary entries to trigger an uncaught KeyError in EngineCore scheduling, causing the decode engine to terminate and making all routed requests fail until manual restart. | |
| Title | vLLM through 0.29.0 Denial of Service via Incomplete NIXL KV Transfer Metadata | |
| First Time appeared |
Vllm
Vllm vllm |
|
| Weaknesses | CWE-248 | |
| CPEs | cpe:2.3:a:vllm:vllm:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Vllm
Vllm vllm |
|
| References |
|
|
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-21T22:04:10.761Z
Reserved: 2026-09-21T21:42:24.373Z
Link: CVE-2026-94622
No data.
Status : Received
Published: 2026-09-21T22:17:00.960
Modified: 2026-09-21T22:17:00.960
Link: CVE-2026-94622
No data.
OpenCVE Enrichment
Updated: 2026-09-22T00:30:18Z
Weaknesses