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vuln-cve/data/2026/42xxx/CVE-2026-42442.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-42442",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-04-27T13:55:58.692Z",
"datePublished": "2026-05-12T19:21:04.924Z",
"dateUpdated": "2026-05-13T14:43:33.505Z"
},
"containers": {
"cna": {
"title": "NanaZip: Null-pointer dereference in NanaZip UFS parser when root inode is a symlink",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-476",
"lang": "en",
"description": "CWE-476: NULL Pointer Dereference",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 3.3,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/M2Team/NanaZip/security/advisories/GHSA-8r4x-fx3w-ph77",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/M2Team/NanaZip/security/advisories/GHSA-8r4x-fx3w-ph77"
}
],
"affected": [
{
"vendor": "M2Team",
"product": "NanaZip",
"versions": [
{
"version": ">= 5.0.1250.0, < 6.0.1698.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-05-12T19:21:04.924Z"
},
"descriptions": [
{
"lang": "en",
"value": "NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a null-pointer dereference exists in the UFS/UFS2 filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted UFS image where the root inode (inode 2) is set to IFLNK (symlink) instead of IFDIR (directory). The parser unconditionally treats the root inode as a directory without checking its type, and when the symlink has an embedded target (small di_size), the directory data buffer is zero-length, causing a null-pointer dereference on the first read. This vulnerability is fixed in 6.0.1698.0."
}
],
"source": {
"advisory": "GHSA-8r4x-fx3w-ph77",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-13T14:43:15.494462Z",
"id": "CVE-2026-42442",
"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": "2026-05-13T14:43:33.505Z"
}
}
]
}
}