Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-48784

Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Prior to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, UrlGenerator::doGenerate() used strtr() dot-segment encoding that skipped every other chained ../ or ./ segment, allowing attacker-controlled route parameters to generate URLs that collapse to a different path under RFC 3986 normalization. This issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 33.9%
CVSS Severity
CVSS v3 Score 6.1
Products affected by CVE-2026-48784


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