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vuln-cve/data/2026/73xxx/CVE-2026-73558.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-73558",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-12T20:53:46.380Z",
"datePublished": "2026-08-13T15:06:06.584Z",
"dateUpdated": "2026-08-13T15:38:40.181Z"
},
"containers": {
"cna": {
"title": "vLLM: Cross-User Data Leak Vulnerability",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-190",
"lang": "en",
"description": "CWE-190: Integer Overflow or Wraparound",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/vllm-project/vllm/security/advisories/GHSA-7m6h-x95x-82q5",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vllm-project/vllm/security/advisories/GHSA-7m6h-x95x-82q5"
},
{
"name": "https://github.com/vllm-project/vllm/issues/42860",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vllm-project/vllm/issues/42860"
},
{
"name": "https://github.com/vllm-project/vllm/pull/49660",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vllm-project/vllm/pull/49660"
},
{
"name": "https://github.com/vllm-project/vllm/commit/451227cb3ff07989698fed982c2d3e4300257924",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vllm-project/vllm/commit/451227cb3ff07989698fed982c2d3e4300257924"
},
{
"name": "https://github.com/vllm-project/vllm/releases/tag/v0.27.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vllm-project/vllm/releases/tag/v0.27.0"
}
],
"affected": [
{
"vendor": "vllm-project",
"product": "vllm",
"versions": [
{
"version": "< 0.27.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-08-13T15:06:06.584Z"
},
"descriptions": [
{
"lang": "en",
"value": "vLLM is an inference and serving engine for large language models. Prior to 0.27.0, an integer overflow in blockIdx.x * 2 * d in activation_kernels.cu can cause act_and_mul_kernel to consume another batched user's input, allowing a request processed in the same inference batch to receive a partial or complete copy of another user's inference result. This issue is fixed in version 0.27.0."
}
],
"source": {
"advisory": "GHSA-7m6h-x95x-82q5",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/vllm-project/vllm/security/advisories/GHSA-7m6h-x95x-82q5",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-08-13T15:38:18.767062Z",
"id": "CVE-2026-73558",
"options": [
{
"Exploitation": "poc"
},
{
"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": "2026-08-13T15:38:40.181Z"
}
}
]
}
}