{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-45367",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-05-12T00:51:29.085Z",
        "datePublished": "2026-07-16T16:52:04.901Z",
        "dateUpdated": "2026-07-18T03:00:14.087Z"
    },
    "containers": {
        "cna": {
            "title": "HAPI FHIR: ReDoS via FHIRPath matches()/replaceMatches() in FHIR Validator HTTP Endpoint",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-1333",
                            "lang": "en",
                            "description": "CWE-1333: Inefficient Regular Expression Complexity",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 7.5,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-3653-68v6-rq57",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-3653-68v6-rq57"
                },
                {
                    "name": "https://github.com/hapifhir/org.hl7.fhir.core/pull/2403",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/hapifhir/org.hl7.fhir.core/pull/2403"
                },
                {
                    "name": "https://github.com/hapifhir/org.hl7.fhir.core/pull/2463",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/hapifhir/org.hl7.fhir.core/pull/2463"
                },
                {
                    "name": "https://github.com/hapifhir/org.hl7.fhir.core/commit/275d015c680ce9f90cbe285596e50118e472bf24",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/hapifhir/org.hl7.fhir.core/commit/275d015c680ce9f90cbe285596e50118e472bf24"
                },
                {
                    "name": "https://github.com/hapifhir/org.hl7.fhir.core/commit/e08982d2b6f6dcd6c670a762d9cf999179fbe4ed",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/hapifhir/org.hl7.fhir.core/commit/e08982d2b6f6dcd6c670a762d9cf999179fbe4ed"
                },
                {
                    "name": "https://github.com/hapifhir/org.hl7.fhir.core/releases/tag/6.9.7",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/hapifhir/org.hl7.fhir.core/releases/tag/6.9.7"
                }
            ],
            "affected": [
                {
                    "vendor": "hapifhir",
                    "product": "org.hl7.fhir.core",
                    "versions": [
                        {
                            "version": "< 6.9.7",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-16T16:52:04.901Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to 6.9.7, the FHIRPathEngine implementation passes user-controlled regular expressions from matches(), matchesFull(), and replaceMatches() to Java regex operations without effective timeouts, allowing catastrophic backtracking and denial of service. This issue is fixed in version 6.9.7."
                }
            ],
            "source": {
                "advisory": "GHSA-3653-68v6-rq57",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-18T02:59:58.378253Z",
                                "id": "CVE-2026-45367",
                                "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": "2026-07-18T03:00:14.087Z"
                }
            }
        ]
    }
}