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vuln-cve/data/2026/55xxx/CVE-2026-55552.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-55552",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-06-16T23:01:04.075Z",
"datePublished": "2026-08-28T17:18:45.617Z",
"dateUpdated": "2026-08-31T18:54:23.899Z"
},
"containers": {
"cna": {
"title": "Yamcs: Unauthenticated Directory Traversal",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-22",
"lang": "en",
"description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/yamcs/yamcs/security/advisories/GHSA-9jg3-g3wh-w9pj",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/yamcs/yamcs/security/advisories/GHSA-9jg3-g3wh-w9pj"
},
{
"name": "https://github.com/yamcs/yamcs/commit/c7dfd24e469ae1086c23e0fe04401cb1ce4260d4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/yamcs/yamcs/commit/c7dfd24e469ae1086c23e0fe04401cb1ce4260d4"
},
{
"name": "https://github.com/yamcs/yamcs/commit/f4bc588880c166849e983aa8f65b9c8107d06091",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/yamcs/yamcs/commit/f4bc588880c166849e983aa8f65b9c8107d06091"
},
{
"name": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.11.13",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.11.13"
},
{
"name": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/yamcs/yamcs/releases/tag/yamcs-5.12.0"
}
],
"affected": [
{
"vendor": "yamcs",
"product": "yamcs",
"versions": [
{
"version": "< 5.12.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-08-28T17:19:40.876Z"
},
"descriptions": [
{
"lang": "en",
"value": "Yamcs is a mission control framework. Prior to 5.11.13, Yamcs StaticFileHandler.locateFile resolves an unauthenticated request path without using Path.normalize and Path.toAbsolutePath to confirm that the absolute path remains within the configured staticRoots. A path containing traversal segments can escape the intended web root and return an arbitrary readable host file. The flaw is in yamcs-core/src/main/java/org/yamcs/http/StaticFileHandler.java and can disclose sensitive operating-system and application data. This issue is fixed in version 5.11.13, and the 5.12 line is fixed from version 5.12.0."
}
],
"source": {
"advisory": "GHSA-9jg3-g3wh-w9pj",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-08-31T15:42:22.826410Z",
"id": "CVE-2026-55552",
"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": "2026-08-31T18:54:23.899Z"
}
}
]
}
}