Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-100652— vLLM 0.22.0 through 0.23.0 Denial of Service via stop_token_ids

Quick assessment

Affected
vllm-project vllm
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

vLLM 版本 0.22.0 至 0.23.0 在 Rust 实现的 HTTP 和 gRPC 前端中，未能对 进行词表边界检查，导致超出词表范围的 token ID 能够传递到 。攻击者可通过提交 大于零且包含非法（越界） 的请求，触发 CUDA 张量索引失败，从而使 进入致命状态，必须重启服务才能恢复。

CVSS 5.9 · Medium EPSS 0.33% · P23

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-100652

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
vLLM 0.22.0 through 0.23.0 Denial of Service via stop_token_ids
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
vllm-project vllm 0.22.0 ~ 0.24.0 -

II. Public POCs for CVE-2026-100652

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-100652

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-100652 (1)

Other References for CVE-2026-100652 (1)

Same Patch Batch · vllm-project · 2026-09-26 · 8 CVEs total

CVE-2026-100654 6.5 MEDIUM vLLM before 0.29.0 Denial of Service via out-of-range stop_token_ids
CVE-2026-100650 6.5 MEDIUM vLLM before 0.29.0 Resource Exhaustion via Unbounded Media Materialization
CVE-2026-100651 6.5 MEDIUM vllm before 0.29.0 Denial of Service via Decoder Prompt Length Bypass
CVE-2026-100653 6.5 MEDIUM vLLM 0.22.1 before 0.28.0 Incomplete Artifact Pin Propagation
CVE-2026-100647 5.3 MEDIUM vLLM before 0.29.0 CPU Exhaustion via unbounded cache_salt
CVE-2026-100648 5.3 MEDIUM vllm before 0.29.0 Uncontrolled Resource Consumption via Audio Decoding
CVE-2026-100649 3.7 LOW vLLM before 0.29.0 Resource Limit Bypass via Sampler Subclass

IV. Related Vulnerabilities

Same product: vllm
Same vendor: vllm-project
Same weakness: CWE-20

V. Comments for CVE-2026-100652

No comments yet

Leave a comment