{"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"}}]}}

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