All vulnerabilities
CVE-2026-116172GHSA-rwfw-xvg3-3937

vLLM 0.22.0 before 0.24.0 DoS via Rust gRPC CandidateTokens.top_n

vllm-project vllm
CVSS
8.2High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in0.24.0Fixed versionCVE List
Published25 Oct 2026Updated 25 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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.

Text from CVE List

Affected versions 2

  • vllmaffected: 0.22.0 before 0.24.0CVE List
  • vllmunaffected: 0.24.0CVE List

References 2