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vuln-cve/data/2026/71xxx/CVE-2026-71486.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-71486",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-06T19:56:23.725Z",
"datePublished": "2026-08-17T20:13:06.289Z",
"dateUpdated": "2026-08-18T12:34:44.986Z"
},
"containers": {
"cna": {
"title": "vLLM: Derender endpoints decode caller-supplied GenerateResponse token IDs without output bounds",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-400",
"lang": "en",
"description": "CWE-400: Uncontrolled Resource Consumption",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-770",
"lang": "en",
"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/vllm-project/vllm/security/advisories/GHSA-8737-qx52-hjff",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vllm-project/vllm/security/advisories/GHSA-8737-qx52-hjff"
},
{
"name": "https://github.com/vllm-project/vllm/pull/47260",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vllm-project/vllm/pull/47260"
},
{
"name": "https://github.com/vllm-project/vllm/commit/8e61b646e2d157f9b93451fa048f9c8530c8a67b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vllm-project/vllm/commit/8e61b646e2d157f9b93451fa048f9c8530c8a67b"
},
{
"name": "https://github.com/vllm-project/vllm/releases/tag/v0.26.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vllm-project/vllm/releases/tag/v0.26.0"
}
],
"affected": [
{
"vendor": "vllm-project",
"product": "vllm",
"versions": [
{
"version": "< 0.26.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-08-17T20:13:06.289Z"
},
"descriptions": [
{
"lang": "en",
"value": "vLLM is an inference and serving engine for large language models. Prior to 0.26.0, the /v1/completions/derender and /v1/chat/completions/derender endpoints accept caller-supplied GenerateResponse objects whose generate_responses, choices, token_ids, prompt_logprobs, logprobs.content, top_logprobs, and routed_experts structures are processed by OnlineDerenderer and tokenizer.decode before max_model_len, max_tokens, max_num_seqs, or response-size limits are enforced, allowing an authenticated API client to consume excessive CPU and memory and produce oversized responses. This issue is fixed in version 0.26.0."
}
],
"source": {
"advisory": "GHSA-8737-qx52-hjff",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-08-18T12:34:35.419144Z",
"id": "CVE-2026-71486",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-08-18T12:34:44.986Z"
}
}
]
}
}