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vuln-cve/data/2026/5xxx/CVE-2026-5440.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-5440",
"assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"state": "PUBLISHED",
"assignerShortName": "certcc",
"dateReserved": "2026-04-02T19:22:26.410Z",
"datePublished": "2026-04-09T14:43:55.684Z",
"dateUpdated": "2026-04-14T16:34:31.991Z"
},
"containers": {
"cna": {
"title": "Memory Exhaustion via Unbounded Content-Length",
"descriptions": [
{
"lang": "en",
"value": "A memory exhaustion vulnerability exists in the HTTP server due to unbounded use of the `Content-Length` header. The server allocates memory directly based on the attacker supplied header value without enforcing an upper limit. A crafted HTTP request containing an extremely large `Content-Length` value can trigger excessive memory allocation and server termination, even without sending a request body."
}
],
"source": {
"discovery": "UNKNOWN"
},
"affected": [
{
"vendor": "Orthanc",
"product": "DICOM Server",
"versions": [
{
"status": "affected",
"version": "0",
"lessThanOrEqual": "1.12.10",
"versionType": "custom"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "CWE-770 Allocation of Resources Without Limits or Throttling"
}
]
}
],
"references": [
{
"url": "https://www.orthanc-server.com/"
},
{
"url": "https://www.machinespirits.de/"
},
{
"url": "https://kb.cert.org/vuls/id/536588"
}
],
"x_generator": {
"engine": "VINCE 3.0.35",
"env": "prod",
"origin": "https://cveawg.mitre.org/api/cve/CVE-2026-5440"
},
"providerMetadata": {
"orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"shortName": "certcc",
"dateUpdated": "2026-04-09T14:43:55.684Z"
}
},
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
}
},
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-04-14T15:12:48.721931Z",
"id": "CVE-2026-5440",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"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": "2026-04-14T16:34:31.991Z"
}
}
]
}
}