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vuln-cve/data/2026/42xxx/CVE-2026-42459.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-42459",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-04-27T13:55:58.694Z",
"datePublished": "2026-05-27T15:53:45.452Z",
"dateUpdated": "2026-05-28T14:14:46.406Z"
},
"containers": {
"cna": {
"title": "free5GC: Improper Input Validation and Generation of Error Message Containing Sensitive Information in github.com/free5gc/udm",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-20",
"lang": "en",
"description": "CWE-20: Improper Input Validation",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-209",
"lang": "en",
"description": "CWE-209: Generation of Error Message Containing Sensitive Information",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/free5gc/free5gc/security/advisories/GHSA-585v-hcgf-jhfr",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-585v-hcgf-jhfr"
}
],
"affected": [
{
"vendor": "free5gc",
"product": "free5gc",
"versions": [
{
"version": "< 4.2.2",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-05-27T15:53:45.452Z"
},
"descriptions": [
{
"lang": "en",
"value": "free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, the free5GC UDM component fails to validate the supi path parameter in six GET handlers of the nudm-sdm (Subscriber Data Management) service. An unauthenticated attacker can inject control characters into the SUPI parameter, causing UDM to forward a malformed request to UDR and return a 500 Internal Server Error response that exposes internal infrastructure details. This vulnerability is fixed in 4.2.2."
}
],
"source": {
"advisory": "GHSA-585v-hcgf-jhfr",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/free5gc/free5gc/security/advisories/GHSA-585v-hcgf-jhfr",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-28T14:14:42.971416Z",
"id": "CVE-2026-42459",
"options": [
{
"Exploitation": "poc"
},
{
"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": "2026-05-28T14:14:46.406Z"
}
}
]
}
}