{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-45063",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-05-08T18:45:10.095Z",
        "datePublished": "2026-07-14T18:28:22.074Z",
        "dateUpdated": "2026-07-14T19:46:44.743Z"
    },
    "containers": {
        "cna": {
            "title": "Symfony: Identity Spoofing via Unanchored DN Regex in X509Authenticator",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-290",
                            "lang": "en",
                            "description": "CWE-290: Authentication Bypass by Spoofing",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 9.1,
                        "baseSeverity": "CRITICAL",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/symfony/symfony/security/advisories/GHSA-ph86-p8f6-f9r2",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/symfony/symfony/security/advisories/GHSA-ph86-p8f6-f9r2"
                },
                {
                    "name": "https://github.com/symfony/symfony/commit/59ef484029601a7af06f5e06c6ed921fdcea5a0d",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/symfony/symfony/commit/59ef484029601a7af06f5e06c6ed921fdcea5a0d"
                },
                {
                    "name": "https://github.com/symfony/symfony/releases/tag/v5.4.52",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/symfony/symfony/releases/tag/v5.4.52"
                },
                {
                    "name": "https://github.com/symfony/symfony/releases/tag/v6.4.40",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/symfony/symfony/releases/tag/v6.4.40"
                },
                {
                    "name": "https://github.com/symfony/symfony/releases/tag/v7.4.12",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/symfony/symfony/releases/tag/v7.4.12"
                },
                {
                    "name": "https://github.com/symfony/symfony/releases/tag/v8.0.12",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/symfony/symfony/releases/tag/v8.0.12"
                }
            ],
            "affected": [
                {
                    "vendor": "symfony",
                    "product": "symfony",
                    "versions": [
                        {
                            "version": "< 5.4.52",
                            "status": "affected"
                        },
                        {
                            "version": ">= 6.0.0-BETA1, < 6.4.40",
                            "status": "affected"
                        },
                        {
                            "version": ">= 7.0.0-BETA1, < 7.4.12",
                            "status": "affected"
                        },
                        {
                            "version": ">= 8.0.0-BETA1, < 8.0.12",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-14T18:28:22.074Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.52, 6.4.40, 7.4.12, and 8.0.12, X509Authenticator extracts the user identifier from $_SERVER['SSL_CLIENT_S_DN'] with an unanchored regex that matches emailAddress= anywhere in the distinguished name, allowing an attacker with a trusted certificate containing emailAddress=victim inside another RDN value such as CN to authenticate as the victim. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12."
                }
            ],
            "source": {
                "advisory": "GHSA-ph86-p8f6-f9r2",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-14T19:40:45.430489Z",
                                "id": "CVE-2026-45063",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-07-14T19:46:44.743Z"
                }
            }
        ]
    }
}