{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-69248",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-08-03T19:54:19.852Z",
        "datePublished": "2026-08-03T21:21:43.710Z",
        "dateUpdated": "2026-08-04T15:04:51.587Z"
    },
    "containers": {
        "cna": {
            "title": "python-cryptography verifier accepts wildcard DNS names allowing escape from permittedSubtrees",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-295",
                            "lang": "en",
                            "description": "CWE-295: Improper Certificate Validation",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "LOW",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 6.9,
                        "baseSeverity": "MEDIUM",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:P",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/pyca/cryptography/security/advisories/GHSA-m2h6-j472-rp4c",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/pyca/cryptography/security/advisories/GHSA-m2h6-j472-rp4c"
                },
                {
                    "name": "https://github.com/pyca/cryptography/pull/14888",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/pyca/cryptography/pull/14888"
                },
                {
                    "name": "https://github.com/pyca/cryptography/commit/4d035a4225965edeffd312079a510ef25fcfdcb2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/pyca/cryptography/commit/4d035a4225965edeffd312079a510ef25fcfdcb2"
                }
            ],
            "affected": [
                {
                    "vendor": "pyca",
                    "product": "cryptography",
                    "versions": [
                        {
                            "version": "< 49.0.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-08-03T21:21:43.710Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Prior to 49.0.0, if an intermediate constrained CA permits the DNS name foo.example.com, and the leaf certificate has a wildcard in its DNS SAN of *.example.com, python-cryptography's verifier accepts which allows escaping outside of the permitted names. The core issue is in DNSConstraint::matches, where a wildcard pattern was treated as matching a more-specific permitted constraint even though *.example.com can expand to sibling names such as bar.example.com outside foo.example.com. This allows acceptance of an invalid certificate chain. This issue is fixed in 49.0.0."
                }
            ],
            "source": {
                "advisory": "GHSA-m2h6-j472-rp4c",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/pyca/cryptography/security/advisories/GHSA-m2h6-j472-rp4c",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-08-04T13:34:32.304052Z",
                                "id": "CVE-2026-69248",
                                "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": "2026-08-04T15:04:51.587Z"
                }
            }
        ]
    }
}