AI agents are scanning dependency trees faster than you can patch. Learn how to block vulnerable deploys automatically with a build hook on SymfonyCloud powered by upsun.com 3 lines of config, free-tier-friendly developer.upsun.com/posts/how-to...

Catch Vincent Amstoutz at #SymfonyOnline June 2026 for a battle-tested strategy using AI as an autonomous security researcher to find broken access control and hidden flaws in your app⚡ https://symfony.com/blog/symfonyonline-june-2026-hunting-vulnerabilities-in-symfony-with-llms

Symfony 8.1 curated new features https://symfony.com/blog/symfony-8-1-curated-new-features

🌟 Symfony 8.1.0 released ➡️ https://symfony.com/blog/symfony-8-1-0-released

🔐 CVE-2026-49212: LiveComponentHydrator HMAC checksum lacks component and slot binding ➡️ https://symfony.com/blog/cve-2026-49212-livecomponenthydrator-hmac-checksum-lacks-component-and-slot-binding

🔐 CVE-2026-49216: XSS in symfony/ux-autocomplete via unescaped AJAX response data ➡️ https://symfony.com/blog/cve-2026-49216-xss-in-symfony-ux-autocomplete-via-unescaped-ajax-response-data

🔐 CVE-2026-49215: CSRF Protection Bypass in symfony/ux-live-component: Accept Header is CORS-Safelisted ➡️ https://symfony.com/blog/cve-2026-49215-csrf-protection-bypass-in-symfony-ux-live-component-accept-header-is-cors-safelisted

🔐 CVE-2026-49211: Information exposure via unescaped LIKE wildcards in EntitySearchUtil ➡️ https://symfony.com/blog/cve-2026-49211-information-exposure-via-unescaped-like-wildcards-in-entitysearchutil

🔐 CVE-2026-49210: XSS in symfony/ux-live-component via attacker-controlled child component tag ➡️ https://symfony.com/blog/cve-2026-49210-xss-in-symfony-ux-live-component-via-attacker-controlled-child-component-tag

🔐 CVE-2026-49209: Denial of service in symfony/ux-live-component via unbounded batch action requests ➡️ https://symfony.com/blog/cve-2026-49209-denial-of-service-in-symfony-ux-live-component-via-unbounded-batch-action-requests

🔐 CVE-2026-49208: Format-less date LiveProps parsed with the permissive DateTime constructor ➡️ https://symfony.com/blog/cve-2026-49208-format-less-date-liveprops-parsed-with-the-permissive-datetime-constructor

🌟 Symfony UX 3.1.0 released ➡️ https://symfony.com/blog/symfony-ux-3-1-0-released

🌟 Symfony UX 2.36.0 released ➡️ https://symfony.com/blog/symfony-ux-2-36-0-released

Join Guillaume Loulier at #SymfonyOnline June 2026 to learn how to give your AI agents a voice using native Symfony code. Cost, latency, and real-world implementation unpacked! ⚡ https://symfony.com/blog/symfonyonline-june-2026-giving-voice-to-your-agents-the-symfony-ai-way

🚀 New in Symfony 8.1: Dependency Injection Improvements ➡️ https://symfony.com/blog/new-in-symfony-8-1-dependency-injection-improvements

AI code needs guardrails! 🛑 Join Dave Liddament at #SymfonyOnline June to learn how to write custom PHPStan rules and reframe your testing pyramid for the AI era⚡ https://symfony.com/blog/symfonyonline-june-2026-custom-phpstan-rules-guardrails-for-ai-assisted-symfony-code

🚀 New in Symfony 8.1: Improved JSON Streaming and Querying ➡️ https://symfony.com/blog/new-in-symfony-8-1-improved-json-streaming-and-querying

🔐 CVE-2026-48808: Sandbox property allowlist bypass via the `column` filter under `SourcePolicyInterface` ➡️ https://symfony.com/blog/cve-2026-48808-sandbox-property-allowlist-bypass-via-the-column-filter-under-sourcepolicyinterface

🔐 CVE-2026-48807: Sandbox `__toString()` policy bypass via `Traversable` in `join`/`replace` and `in`/`not in` operators ➡️ https://symfony.com/blog/cve-2026-48807-sandbox-tostring-policy-bypass-via-traversable-in-join-replace-and-in-not-in-operators

🔐 CVE-2026-48806: Sandbox `__toString()` policy bypass via dynamic mapping keys ➡️ https://symfony.com/blog/cve-2026-48806-sandbox-tostring-policy-bypass-via-dynamic-mapping-keys

🔐 CVE-2026-48805: Sandbox state regression in deprecated internal wrappers in `src/Resources/core.php` ➡️ https://symfony.com/blog/cve-2026-48805-sandbox-state-regression-in-deprecated-internal-wrappers-in-src-resources-core-php

🔐 CVE-2026-46636: Sandbox filter, tag and function allow-list bypass when sandbox state changes between renders ➡️ https://symfony.com/blog/cve-2026-46636-sandbox-filter-tag-and-function-allow-list-bypass-when-sandbox-state-changes-between-renders

🌟 Twig 3.27.0 released ➡️ https://symfony.com/blog/twig-3-27-0-released

Build platforms that scale without breaking end-user customizations 🛠️ Sean Mackay will share how Pimcore’s migration to Symfony unlocked rapid improvements, easy customization, and seamless updates! https://symfony.com/blog/symfonyday-montreal-2026-using-symfony-for-successful-platform-development

🌟 Symfony 8.1.0-RC1 released ➡️ https://symfony.com/blog/symfony-8-1-0-rc1-released

🚀 SymfonyCon Warsaw 2026: Stay where the action is! 🇵🇱 Get special room rates at the official conference hotel and enjoy the community vibes 24/7! 🏨✨ 🔹 Breakfast & fitness club included 🔹 Free cancellation until Nov 2, 2026 👉 Book your special rate hilton.com/en/book/rese...

🌟 Symfony 8.0.13 released ➡️ https://symfony.com/blog/symfony-8-0-13-released

🔐 CVE-2026-48784: UrlGenerator Encoding Skips Every Other Chained ../ or ./: Generated URL Collapses Off-Route ➡️ https://symfony.com/blog/cve-2026-48784-urlgenerator-encoding-skips-every-other-chained-or-generated-url-collapses-off-route

🔐 CVE-2026-48761: HtmlSanitizer Misses URL Attributes on object, applet, iframe, img and meta refresh ➡️ https://symfony.com/blog/cve-2026-48761-htmlsanitizer-misses-url-attributes-on-object-applet-iframe-img-and-meta-refresh

🔐 CVE-2026-48760: HtmlSanitizer URL Parser Underinclusive: Percent-Encoded BiDi Marks and Unicode Whitespace Bypass ➡️ https://symfony.com/blog/cve-2026-48760-htmlsanitizer-url-parser-underinclusive-percent-encoded-bidi-marks-and-unicode-whitespace-bypass

🔐 CVE-2026-48747: Mailomat Webhook Parser Reads the HMAC Algorithm from the Request: Signature Algorithm Downgrade ➡️ https://symfony.com/blog/cve-2026-48747-mailomat-webhook-parser-reads-the-hmac-algorithm-from-the-request-signature-algorithm-downgrade

🔐 CVE-2026-48736: IpUtils::PRIVATE_SUBNETS Omits IPv6 Transition Forms: SSRF Bypass in NoPrivateNetworkHttpClient ➡️ https://symfony.com/blog/cve-2026-48736-iputils-private-subnets-omits-ipv6-transition-forms-ssrf-bypass-in-noprivatenetworkhttpclient

🔐 CVE-2026-48489: Security Firewall Bypass via failure_forward Subrequest ➡️ https://symfony.com/blog/cve-2026-48489-security-firewall-bypass-via-failure-forward-subrequest

We're thrilled to see this comprehensive Symfony UX guide drop! 🚀 If you want to streamline your full-stack development and improve user experience, don't miss this new guide by @sensiolabs.com! #SymfonyUX is a game-changer for PHP developers ✨ Grab your copy below! 👇

🌟 Symfony 7.4.13 released ➡️ https://symfony.com/blog/symfony-7-4-13-released

🌟 Symfony 6.4.41 released ➡️ https://symfony.com/blog/symfony-6-4-41-released

🌟 Symfony 5.4.53 released ➡️ https://symfony.com/blog/symfony-5-4-53-released

Join Christopher Hertel at #SymfonyOnline June 2026 for a deep dive into the official Symfony AI initiative. Learn about the Platform, Agent, and Store components with live demos (vision, tools, RAG)! https://symfony.com/blog/symfonyonline-june-2026-symfony-ai-platform-agent-and-store

🔐 CVE-2026-46644: insecure equivalence in symfony/polyfill-intl-idn for ASCII-only xn-- labels ➡️ https://symfony.com/blog/cve-2026-46644-insecure-equivalence-in-symfony-polyfill-intl-idn-for-ascii-only-xn-labels

🌟 Polyfill 1.38.1 released ➡️ https://symfony.com/blog/polyfill-1-38-1-released

At #SymfonyDay Montreal, Thomas Durand will show how leveraging interactive Symfony Console commands can supercharge your debugging and code validation! 💻 https://symfony.com/blog/symfonyday-montreal-2026-cli-driven-development-an-ode-to-symfony-console

🚀 New in Symfony 8.1: Improved Console Input ➡️ https://symfony.com/blog/new-in-symfony-8-1-improved-console-input

🖥 A Week of Symfony #1012 (May 18–24, 2026) ➡️ https://symfony.com/blog/a-week-of-symfony-1012-may-18-24-2026

Stop wasting milliseconds ⏱️ At #SymfonyDay Montreal, Mathias Arlaud breaks down Symfony's HTTP layer internals to show you exactly how to squeeze every drop of efficiency out of your controllers! https://symfony.com/blog/symfonyday-montreal-2026-the-hidden-cost-of-return-new-response

Symfony UX 2.x Security Maintenance Update ➡️ https://symfony.com/blog/symfony-ux-2-x-security-maintenance-update

🚀 New in Symfony 8.1: Messenger Improvements ➡️ https://symfony.com/blog/new-in-symfony-8-1-messenger-improvements

Claude Mythos Audited Symfony and Found 19 Vulnerabilities ➡️ https://symfony.com/blog/claude-mythos-audited-symfony-and-found-19-vulnerabilities

🔐 CVE-2026-45070: Email Header Injection via Non-Token Characters in Mime Parameter Names ➡️ https://symfony.com/blog/cve-2026-45070-email-header-injection-via-non-token-characters-in-mime-parameter-names

Stop giving AI more context, give it better context 🎯 Catch Johannes Wachter at #SymfonyOnline June 2026 as he unveils Symfony Mate for Claude Code, Cursor, and Codex! https://symfony.com/blog/symfonyonline-june-2026-symfony-mate-real-runtime-context-for-ai-coding-assistants

🔐 CVE-2026-47212: Twilio Notifier Webhook Parser Never Verifies the X-Twilio-Signature HMAC: Unauthenticated Webhook Event Injection ➡️ https://symfony.com/blog/cve-2026-47212-twilio-notifier-webhook-parser-never-verifies-the-x-twilio-signature-hmac-unauthenticated-webhook-event-injection