{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-73212",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-08-11T14:41:20.121Z",
        "datePublished": "2026-08-11T17:31:43.961Z",
        "dateUpdated": "2026-08-11T17:44:17.467Z"
    },
    "containers": {
        "cna": {
            "title": "coturn peer-IP ACL canonicalization & scope bypass on the RFC 6062 TCP CONNECT relay path → internal-network SSRF and proven internal root RCE",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-284",
                            "lang": "en",
                            "description": "CWE-284: Improper Access Control",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-918",
                            "lang": "en",
                            "description": "CWE-918: Server-Side Request Forgery (SSRF)",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "HIGH",
                        "subIntegrityImpact": "HIGH",
                        "subAvailabilityImpact": "HIGH",
                        "baseScore": 5.8,
                        "baseSeverity": "MEDIUM",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/coturn/coturn/security/advisories/GHSA-2x4g-wx24-48m4",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/coturn/coturn/security/advisories/GHSA-2x4g-wx24-48m4"
                },
                {
                    "name": "https://github.com/coturn/coturn/pull/1945",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/coturn/coturn/pull/1945"
                },
                {
                    "name": "https://github.com/coturn/coturn/pull/1947",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/coturn/coturn/pull/1947"
                },
                {
                    "name": "https://github.com/coturn/coturn/commit/cf4b4952de48510d38415b96300da5fc674bfdda",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/coturn/coturn/commit/cf4b4952de48510d38415b96300da5fc674bfdda"
                },
                {
                    "name": "https://github.com/coturn/coturn/commit/d49ee56aa9fe748af064853d5e430eec1ccc3cbc",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/coturn/coturn/commit/d49ee56aa9fe748af064853d5e430eec1ccc3cbc"
                },
                {
                    "name": "https://github.com/coturn/coturn/releases/tag/4.13.1",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/coturn/coturn/releases/tag/4.13.1"
                }
            ],
            "affected": [
                {
                    "vendor": "coturn",
                    "product": "coturn",
                    "versions": [
                        {
                            "version": "< 4.13.1",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-08-11T17:31:43.961Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.13.1, good_peer_addr() in src/server/ns_turn_server.c uses ioa_addr_in_range() in src/client/ns_turn_ioaddr.c without canonicalizing IPv4-compatible, 6to4, and 64:ff9b::/96 NAT64 address forms, allowing an authenticated RFC 6062 TCP CONNECT relay client to bypass an IPv4 denied-peer-ip range when the Coturn host has a useful translation route. This issue is fixed in version 4.13.1."
                }
            ],
            "source": {
                "advisory": "GHSA-2x4g-wx24-48m4",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-11T17:44:03.488057Z",
                                "id": "CVE-2026-73212",
                                "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": "2026-08-11T17:44:17.467Z"
                }
            }
        ]
    }
}