Medium 5.9Published Oct 25, 2026

CVE-2026-116172vLLM 0.22.0 before 0.24.0 DoS via Rust gRPC CandidateTokens.top_n

Updated under an hour ago (Oct 27, 2026, 8:10 PM ET)

Does this affect you?

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

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

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 converter that allows remote attackers to bypass max_logprobs limits via CandidateTokens.top_n. Attackers can send Generate or GenerateStream requests with oversized or integer-wrapping top_n values to trigger torch.topk failures that terminate EngineCore.

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-rwfw-xvg3-3937	vendor-advisory
https://www.vulncheck.com/advisories/vllm-0.22.0-before-0.24.0-dos-via-rust-grpc-candidatetokens-top-n	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.