symfony/yaml vulnerabilities

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CVE-IDSeverityPackage summary
CVE-2026-45305Lowsymfony/yaml: Symfony's YAML Parser has a ReDoS via Catastrophic Backtracking in Parser::cleanup() RegexCVE-2026-45304Lowsymfony/yaml: Symfony's YAML Parser Vulnerable to Exponential Memory Allocation via Recursive Collection-Alias Expansion ("Billion Laughs")CVE-2026-45133Lowsymfony/yaml: Symfony hardened the parser when handling untrusted inputCVE-2013-1348Highsymfony/symfony: Symphony Vulnerable to PHP Code Injection via YAML ParsingCVE-2013-1397Highsymfony/symfony: Symfony Arbitrary PHP code Execution

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