Medium 5.9Published Oct 25, 2026

CVE-2026-116174vLLM 0.22.0 before 0.24.0 Denial of Service via Rust gRPC Generate

Updated under an hour ago (Oct 28, 2026, 1:23 AM ET)

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It affects vllm-project vllm. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for vllm-project vllm

Exploited in the last 30 days

vLLM from 0.22.0 before 0.24.0 contains an improper input validation vulnerability in the Rust gRPC Generate and GenerateStream service that forwards unchecked prompt token IDs to EngineCore. Attackers can submit requests with out-of-vocabulary prompt.token_ids values to trigger a fatal embedding lookup failure that terminates EngineCore and leaves the server unhealthy.

CVSS: 5.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-20
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Awaiting Analysis
Record last updated: Oct 25, 2026
First seen by InfoSec Signals: Oct 25, 2026

Affected products

Affected products

vllm-project vllm vllm_project:vllm (from the name)	from 0.22.0 before 0.24.0; 0.24.0 not affected	CNA record

References

References

https://github.com/vllm-project/vllm/security/advisories/GHSA-w2v2-5662-8v5q	vendor-advisory
https://www.vulncheck.com/advisories/vllm-0.22.0-before-0.24.0-denial-of-service-via-rust-grpc-generate	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.