{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-85738",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-09-04T14:50:16.719Z",
        "datePublished": "2026-09-24T18:09:31.268Z",
        "dateUpdated": "2026-09-28T14:51:56.222Z"
    },
    "containers": {
        "cna": {
            "title": "TREK: SSRF Guard Bypass via IPv6 Transition Addresses (NAT64/6to4)",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-918",
                            "lang": "en",
                            "description": "CWE-918: Server-Side Request Forgery (SSRF)",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 6.3,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "LOW",
                        "scope": "CHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/liketrek/TREK/security/advisories/GHSA-9hpq-mrpx-mcxg",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/liketrek/TREK/security/advisories/GHSA-9hpq-mrpx-mcxg"
                },
                {
                    "name": "https://github.com/liketrek/TREK/pull/1540",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/liketrek/TREK/pull/1540"
                },
                {
                    "name": "https://github.com/liketrek/TREK/commit/a2bd9be184a94997105ce190dad920c41e7b10df",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/liketrek/TREK/commit/a2bd9be184a94997105ce190dad920c41e7b10df"
                },
                {
                    "name": "https://github.com/liketrek/TREK/releases/tag/v3.4.0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/liketrek/TREK/releases/tag/v3.4.0"
                }
            ],
            "affected": [
                {
                    "vendor": "liketrek",
                    "product": "TREK",
                    "versions": [
                        {
                            "version": "< 3.4.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-09-24T18:09:31.268Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "TREK is a collaborative travel planner. Prior to 3.4.0, the checkSsrf logic in server/src/utils/ssrfGuard.ts does not recognize NAT64, 6to4, or Teredo IPv6 transition addresses that encode an IPv4 destination. An authenticated user who controls a DNS record can supply a URL whose AAAA result is a transition address embedding a private, loopback, or link-local IPv4 target, and isAlwaysBlocked and isPrivateNetwork classify the address as allowed. In a deployment that routes the applicable transition format, user-facing imports, webhooks, integrations, or plugin egress can reach internal services or cloud metadata and expose returned information. This issue is fixed in version 3.4.0."
                }
            ],
            "source": {
                "advisory": "GHSA-9hpq-mrpx-mcxg",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/liketrek/TREK/security/advisories/GHSA-9hpq-mrpx-mcxg",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-28T14:51:50.053724Z",
                                "id": "CVE-2026-85738",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "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": "2026-09-28T14:51:56.222Z"
                }
            }
        ]
    }
}