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Symfony Blog

All about Symfony releases, new Symfony features, and other important announcements

November 5, 2026 #Releases #Symfony UX ❤️ 4 🚀 2 🎉 2
Symfony 8.2 lets your tests record real HTTP calls once and replay them in later runs, so they stay fast and don't depend on external APIs.
November 5, 2026 #Living on the edge ❤️ 3 👍 2 🚀 4 🎉 2
November 5, 2026 #Releases
Secure your ticket for SymfonyLive Germany 2027 before the Early Bird window closes in 30 days. Meet the community in Cologne for four days of workshops, talks, and networking!
November 4, 2026 #Conferences
November 4, 2026 #Releases 👀 2 ❤️ 5 👍 1 🚀 5 🎉 3
The Serializer Builds UploadedFile Objects From Request Data, Letting a Client Point an Upload at Any Server File
November 4, 2026 #Security Advisories #Symfony
Filesystem Path Treats Any Prefix Before "://" as a Root, Letting Paths Escape Their Base Directory
November 4, 2026 #Security Advisories #Symfony
X509Authenticator and X509AuthenticationListener Read Escaped RFC 2253 Commas and Bare Slashes Inside a DN Value as RDN Boundaries: Incomplete Fix for CVE-2026-45063
November 4, 2026 #Security Advisories #Symfony 👍 1
Exponential and Quadratic Parse Times in the YAML Parser Let a Single Document Hold a Process
November 4, 2026 #Security Advisories #Symfony
Generated URLs Can Point to a Host Chosen by the Client
November 4, 2026 #Security Advisories #Symfony