CVE-2026-45065Sensiolabs · Symfony
Vulnerability data via NVD (ingested)
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, UrlGenerator validates route parameters against a pattern built as ^ plus the raw requirement plus $; with ungrouped alternations, middle alternatives match as unanchored substrings, allowing a value such as //evil.com to satisfy a common locale requirement and generate a protocol-relative off-site URL. This issue is fixed in versions 5.4.52, 6.4.40, 7.4.12, and 8.0.12.
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.
vuln:CVE-2026-45065product:"Sensiolabs Symfony"http.html:"Symfony"More intel sources (5)
vuln:CVE-2026-45065vulnerabilities.cve_id: CVE-2026-45065CVE-2026-45065CVE-2026-45065"CVE-2026-45065" exploit -site:nvd.nist.gov