Reference page — cumulative record through Thursday, October 8, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-100652

CVE-2026-100652HIGH

vllm-project vllm — vLLM 0.22.0 through 0.23.0 Denial of Service via stop_token_ids

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   H   P   N   N   N   N   H    8.2   .0036   27.9     —

AFFECTED
  Product  Versions  Fixed
  vllm     0.22.0 –  0.24.0

TIMELINE
  Sep 26  Reserved by VulnCheck
  Sep 26  Published (CNA: VulnCheck)
  Oct 6   EXPLOIT PUBLISHED — CVE-2026-100652 (vllm-project vllm). Public exploit reference added.

CWE-20 · CNA: VulnCheck · CVSS v4.0 · 2 references · NVD status: Analyzed

Description

vLLM versions 0.22.0 through 0.23.0 fail to validate stop_token_ids against vocabulary bounds in Rust HTTP and gRPC frontends, allowing out-of-vocabulary token IDs to reach MinTokensLogitsProcessor. Attackers can submit requests with min_tokens greater than zero and out-of-vocabulary stop_token_ids to trigger CUDA tensor indexing failures that leave EngineCore in a fatal state requiring service restart.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 26, 2026	Reserved	Reserved by VulnCheck
September 26, 2026	Published	Published (CNA: VulnCheck)
October 6, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-100652 (vllm-project vllm). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
vllm-project	vllm	—	0.22.0	0.24.0

Weaknesses

CWE-20

References (2)

https://github.com/vllm-project/vllm/security/advisories/GHSA-qff2-492f-9fm4 [Exploit, Mitigation, Vendor Advisory]
https://www.vulncheck.com/advisories/vllm-0.22.0-through-0.23.0-denial-of-service-via-stop-token-ids [Third Party Advisory]

Authoritative record: CVE-2026-100652 at cve.org

Vendors: vllm-project

Weaknesses: CWE-20

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-100652 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Thursday, October 8, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.