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CVE-2026-116172

vLLM 0.22.0 before 0.24.0 DoS via Rust gRPC CandidateTokens.top_n

HIGH
7.5
CVSS Score
Published: October 25, 2026 at 01:20 PM UTC
Updated: October 28, 2026 at 03:43 PM UTC
1 product affected across 1 vendorvLLM

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Severity
HIGH7.5
Exploit prediction
EPSS 0.3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

vLLM· Vllm
95%
0.22.0 ≤ v < 0.24.0
Vendor states this is fixed in 0.24.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor AdvisoryMitigation
Source: cverecord
https://github.com/vllm-project/vllm/security/advisories/GHSA-rwfw-xvg3-3937
Third Party Advisory
Source: cverecord
https://www.vulncheck.com/advisories/vllm-0.22.0-before-0.24.0-dos-via-rust-grpc-candidatetokens-top-n

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-20

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