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vuln-cve/data/2026/63xxx/CVE-2026-63188.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-63188",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-07-15T22:13:00.721Z",
"datePublished": "2026-08-19T19:47:05.155Z",
"dateUpdated": "2026-08-21T21:48:40.521Z"
},
"containers": {
"cna": {
"title": "logto-tunnel serves files outside --experience-path via path 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": [
{
"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": 8.7,
"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",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/logto-io/logto/security/advisories/GHSA-rxjr-6c9q-h67x",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/logto-io/logto/security/advisories/GHSA-rxjr-6c9q-h67x"
},
{
"name": "https://github.com/logto-io/logto/pull/9113",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/logto-io/logto/pull/9113"
},
{
"name": "https://github.com/logto-io/logto/commit/5686815955534f803d3d50738259efd0f741e62c",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/logto-io/logto/commit/5686815955534f803d3d50738259efd0f741e62c"
},
{
"name": "https://github.com/logto-io/logto/releases/tag/@logto/tunnel@0.3.9",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/logto-io/logto/releases/tag/@logto/tunnel@0.3.9"
}
],
"affected": [
{
"vendor": "logto-io",
"product": "logto",
"versions": [
{
"version": "< 0.3.9",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-08-19T19:47:05.155Z"
},
"descriptions": [
{
"lang": "en",
"value": "Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 0.3.9, the Logto Tunnel npm package enabled createStaticFileProxy from packages/tunnel/src/commands/tunnel/index.ts and passed request.url from static asset requests through packages/tunnel/src/commands/tunnel/utils.ts using path.join(staticPath, request.url) and then fs.open(requestPath, \"r\") without URL normalization or a containment check. When --experience-path was enabled and the tunnel port was reachable, an unauthenticated requester could send a path containing ../ to createStaticFileProxy and read files outside the configured static directory that were readable by the logto-tunnel process. The service used server.listen(port), which could expose the tunnel to other hosts depending on the platform and deployment. This issue is fixed in version 0.3.9."
}
],
"source": {
"advisory": "GHSA-rxjr-6c9q-h67x",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-08-21T21:09:50.936080Z",
"id": "CVE-2026-63188",
"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": "2026-08-21T21:48:40.521Z"
}
}
]
}
}