CVE-2026-93592— vLLM before 0.28.0 Denial of Service via negative token ID
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 版本低于 0.28.0 在 和 端点中未对令牌 ID（token ID）的下界进行校验，这使得未认证的攻击者能够通过提交负的令牌 ID 使引擎崩溃。一个包含负令牌 ID 的请求会触发 CUDA 设备端的断言，从而污染 GPU 上下文，导致后续所有请求均会失败，直到进程重启。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1499.004 · Application or System ExploitationAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| vllm-project | vllm | < 0.28.0 |
affected |
0.28.0 |
unaffected |
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I. Basic Information for CVE-2026-93592
Vulnerability Information
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Vulnerability Title
vLLM before 0.28.0 Denial of Service via negative token ID
Source: CVE Program / CVE List V5
Vulnerability Description
vLLM versions before 0.28.0 fail to validate the lower bound of token IDs in the /v1/embeddings and /pooling endpoints, allowing unauthenticated attackers to crash the engine by submitting negative token IDs. A single request with a negative token ID triggers a CUDA device-side assertion that poisons the GPU context, causing all subsequent requests to fail until the process restarts.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对数组索引的验证不恰当
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| vllm-project | vllm | 0 ~ 0.28.0 | - |
|
II. Public POCs for CVE-2026-93592
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-93592 (2)
Same Patch Batch · vllm-project · 2026-09-18 · 3 CVEs total
| CVE-2026-93840 | 3.7 LOW | vLLM before 0.29.0 Cross-Request Logits Corruption via allowed_token_ids |
| CVE-2026-93841 | 3.7 LOW | vLLM through 0.29.0 Adjacent-Request Sampler State Corruption via Unvalidated Prompt Token |
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V. Comments for CVE-2026-93592
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