Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/92168?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/92168?format=api", "vulnerability_id": "VCID-p6dz-c7ee-1fg9", "summary": "Symfony Vulnerable to Identity Spoofing via Unanchored DN Regex in X509Authenticator\n### Description\n\n`X509Authenticator` implements client-certificate (mTLS) authentication: the web server validates the client's certificate against a trusted CA, then passes the certificate's Subject DN (Distinguished Name: a string like `CN=Alice,O=Example,emailAddress=alice@example.com`) to Symfony via `$_SERVER['SSL_CLIENT_S_DN']`. Symfony extracts the user identifier from that string.\n\nThe extraction uses an **unanchored** regex that matches `emailAddress=` anywhere in the DN string: including inside the *value* of a different RDN (Relative Distinguished Name: one `key=value` component of the DN), such as `CN`. An attacker who can obtain a certificate from a trusted CA with a free-text `CN` can smuggle `emailAddress=victim@target` inside the CN value and be authenticated as the victim.\n\n### Resolution\n\nThe `X509Authenticator` now uses a regex that anchors the match to an RDN boundary (start of string, or following a `,` / `/` separator).\n\nThe patch for this issue is available [here](https://github.com/symfony/symfony/commit/ccb3f724c7ff55670a6fe3521c7bf1514cceb478) for branch 5.4.\n\n### Credits\n\nSymfony would like to thank Claude Mythos Preview (via Project Glasswing) for reporting the issue and providing the fix.", "aliases": [ { "alias": "CVE-2026-45063" }, { "alias": "GHSA-ph86-p8f6-f9r2" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/114766?format=api", "purl": "pkg:composer/symfony/security-http@5.4.52", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/security-http@5.4.52" }, { "url": "http://public2.vulnerablecode.io/api/packages/114767?format=api", "purl": "pkg:composer/symfony/security-http@6.4.40", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/security-http@6.4.40" }, { "url": "http://public2.vulnerablecode.io/api/packages/114768?format=api", "purl": "pkg:composer/symfony/security-http@7.4.12", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/security-http@7.4.12" }, { "url": "http://public2.vulnerablecode.io/api/packages/114769?format=api", "purl": "pkg:composer/symfony/security-http@8.0.12", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/security-http@8.0.12" }, { "url": "http://public2.vulnerablecode.io/api/packages/114770?format=api", "purl": "pkg:composer/symfony/symfony@5.4.52", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/symfony@5.4.52" }, { "url": "http://public2.vulnerablecode.io/api/packages/114771?format=api", "purl": "pkg:composer/symfony/symfony@6.4.40", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/symfony@6.4.40" }, { "url": "http://public2.vulnerablecode.io/api/packages/114701?format=api", "purl": "pkg:composer/symfony/symfony@7.4.12", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/symfony@7.4.12" }, { "url": "http://public2.vulnerablecode.io/api/packages/114702?format=api", "purl": "pkg:composer/symfony/symfony@8.0.12", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/symfony@8.0.12" }, { "url": "http://public2.vulnerablecode.io/api/packages/130148?format=api", "purl": "pkg:deb/debian/symfony@5.4.23%2Bdfsg-1%2Bdeb12u5?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-rfnv-6wry-z7f1" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/symfony@5.4.23%252Bdfsg-1%252Bdeb12u5%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/195833?format=api", "purl": "pkg:deb/debian/symfony@5.4.23%2Bdfsg-1%2Bdeb12u5", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-rfnv-6wry-z7f1" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/symfony@5.4.23%252Bdfsg-1%252Bdeb12u5" }, { "url": "http://public2.vulnerablecode.io/api/packages/130184?format=api", "purl": "pkg:deb/debian/symfony@5.4.53%2Bdfsg-0%2Bdeb12u1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/symfony@5.4.53%252Bdfsg-0%252Bdeb12u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/130152?format=api", "purl": "pkg:deb/debian/symfony@6.4.21%2Bdfsg-2%2Bdeb13u1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-rfnv-6wry-z7f1" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/symfony@6.4.21%252Bdfsg-2%252Bdeb13u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/130186?format=api", "purl": "pkg:deb/debian/symfony@6.4.41%2Bdfsg-0%2Bdeb13u1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/symfony@6.4.41%252Bdfsg-0%252Bdeb13u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/130196?format=api", "purl": "pkg:deb/debian/symfony@7.4.12%2Bdfsg-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/symfony@7.4.12%252Bdfsg-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/130151?format=api", "purl": "pkg:deb/debian/symfony@7.4.13%2Bdfsg-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/symfony@7.4.13%252Bdfsg-1%3Fdistro=trixie" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/83251?format=api", "purl": "pkg:composer/symfony/security-http@6.0.0-BETA1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-p6dz-c7ee-1fg9" }, { "vulnerability": "VCID-r7t3-q914-yuay" }, { "vulnerability": "VCID-rfnv-6wry-z7f1" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/security-http@6.0.0-BETA1" }, { "url": "http://public2.vulnerablecode.io/api/packages/83252?format=api", "purl": "pkg:composer/symfony/security-http@7.0.0-BETA1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-p6dz-c7ee-1fg9" }, { "vulnerability": "VCID-r7t3-q914-yuay" }, { "vulnerability": "VCID-rfnv-6wry-z7f1" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/security-http@7.0.0-BETA1" }, { "url": "http://public2.vulnerablecode.io/api/packages/515398?format=api", "purl": "pkg:composer/symfony/security-http@8.0.0-BETA1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-p6dz-c7ee-1fg9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/security-http@8.0.0-BETA1" }, { "url": "http://public2.vulnerablecode.io/api/packages/515396?format=api", "purl": "pkg:composer/symfony/symfony@6.0.0-BETA1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-p6dz-c7ee-1fg9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/symfony@6.0.0-BETA1" }, { "url": "http://public2.vulnerablecode.io/api/packages/515397?format=api", "purl": "pkg:composer/symfony/symfony@7.0.0-BETA1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-p6dz-c7ee-1fg9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/symfony@7.0.0-BETA1" }, { "url": "http://public2.vulnerablecode.io/api/packages/515395?format=api", "purl": "pkg:composer/symfony/symfony@8.0.0-BETA1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-p6dz-c7ee-1fg9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/symfony/symfony@8.0.0-BETA1" }, { "url": "http://public2.vulnerablecode.io/api/packages/130150?format=api", "purl": "pkg:deb/debian/symfony@4.4.19%2Bdfsg-2%2Bdeb11u6?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-4av2-4k9f-byb5" }, { "vulnerability": "VCID-6v9h-7sk2-cbap" }, { "vulnerability": "VCID-7wrn-mbd7-d7ah" }, { "vulnerability": "VCID-bhnt-pgq7-yya3" }, { "vulnerability": "VCID-duk3-7fw9-xbcq" }, { "vulnerability": "VCID-h11w-bz83-wug4" }, { "vulnerability": "VCID-jcjs-qt7d-syfb" }, { "vulnerability": "VCID-m2u1-mytm-63cx" }, { "vulnerability": "VCID-mj2s-4kzv-1ue6" }, { "vulnerability": "VCID-p6dz-c7ee-1fg9" }, { "vulnerability": "VCID-pdhd-87qs-m7hp" }, { "vulnerability": "VCID-phfm-mhxk-fyde" }, { "vulnerability": "VCID-puu2-f43k-tbc2" }, { "vulnerability": "VCID-qchu-m5ka-nud8" }, { "vulnerability": "VCID-r9n1-p36r-zbhy" }, { "vulnerability": "VCID-rahf-hzw6-rqgm" }, { "vulnerability": "VCID-rfnv-6wry-z7f1" }, { "vulnerability": "VCID-wmjm-3p6s-e3am" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/symfony@4.4.19%252Bdfsg-2%252Bdeb11u6%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/195832?format=api", "purl": "pkg:deb/debian/symfony@4.4.19%2Bdfsg-2%2Bdeb11u6", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-4av2-4k9f-byb5" }, { "vulnerability": "VCID-6v9h-7sk2-cbap" }, { "vulnerability": "VCID-7wrn-mbd7-d7ah" }, { "vulnerability": "VCID-bhnt-pgq7-yya3" }, { "vulnerability": "VCID-duk3-7fw9-xbcq" }, { "vulnerability": "VCID-h11w-bz83-wug4" }, { "vulnerability": "VCID-jcjs-qt7d-syfb" }, { "vulnerability": "VCID-m2u1-mytm-63cx" }, { "vulnerability": "VCID-mj2s-4kzv-1ue6" }, { "vulnerability": "VCID-p6dz-c7ee-1fg9" }, { "vulnerability": "VCID-pdhd-87qs-m7hp" }, { "vulnerability": "VCID-phfm-mhxk-fyde" }, { "vulnerability": "VCID-pj86-ync3-gyan" }, { "vulnerability": "VCID-puu2-f43k-tbc2" }, { "vulnerability": "VCID-qchu-m5ka-nud8" }, { "vulnerability": "VCID-r9n1-p36r-zbhy" }, { "vulnerability": "VCID-rahf-hzw6-rqgm" }, { "vulnerability": "VCID-rfnv-6wry-z7f1" }, { "vulnerability": "VCID-wmjm-3p6s-e3am" }, { "vulnerability": "VCID-zgxf-qxwu-pqf9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/symfony@4.4.19%252Bdfsg-2%252Bdeb11u6" } ], "references": [ { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-45063", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-45063" }, { "reference_url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2026-45063.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-http/CVE-2026-45063.yaml" }, { "reference_url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2026-45063.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2026-45063.yaml" }, { "reference_url": "https://github.com/symfony/symfony", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/symfony/symfony" }, { "reference_url": "https://github.com/symfony/symfony/commit/ccb3f724c7ff55670a6fe3521c7bf1514cceb478", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/symfony/symfony/commit/ccb3f724c7ff55670a6fe3521c7bf1514cceb478" }, { "reference_url": "https://github.com/symfony/symfony/security/advisories/GHSA-ph86-p8f6-f9r2", "reference_id": "", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" }, { "value": "8.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://github.com/symfony/symfony/security/advisories/GHSA-ph86-p8f6-f9r2" }, { "reference_url": "https://symfony.com/cve-2026-45063", "reference_id": "", "reference_type": "", "scores": [ { "value": "8.7", "scoring_system": "cvssv4", "scoring_elements": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N" }, { "value": "HIGH", "scoring_system": "generic_textual", "scoring_elements": "" } ], "url": "https://symfony.com/cve-2026-45063" }, { "reference_url": "https://github.com/advisories/GHSA-ph86-p8f6-f9r2", "reference_id": "GHSA-ph86-p8f6-f9r2", "reference_type": "", "scores": [ { "value": "HIGH", "scoring_system": "cvssv3.1_qr", "scoring_elements": "" } ], "url": "https://github.com/advisories/GHSA-ph86-p8f6-f9r2" } ], "weaknesses": [ { "cwe_id": 290, "name": "Authentication Bypass by Spoofing", "description": "This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks." } ], "exploits": [], "severity_range_score": "7.0 - 8.9", "exploitability": "0.5", "weighted_severity": "8.0", "risk_score": 4.0, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-p6dz-c7ee-1fg9" }