{
    "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": "2026-08-19T19:47:05.155Z"
    },
    "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"
            }
        }
    }
}