Fastly’s Proactive Protection for Critical React RCE CVE-2025-55182 and CVE-2025-66478

All blog posts

• Fastly’s Proactive Protection for Critical React RCE CVE-2025-55182 and CVE-2025-66478

  Kelly Shortridge

  Protect your apps from the critical React RCE bugs (CVE-2025-55182/66478). Fastly's NGWAF Virtual Patch provides proactive defense.

  December 03, 2025

  Security

  

• How Fastly and Yottaa Transform Site Performance with Early Hints

  Ajay Bharadwaj, Terri Allegretto

  Early Hints for Compute is now generally available, dramatically improving website performance and user experience by preloading essential resources.

  November 25, 2025

  Compute

  + 4 more

  

• Why the Future of Streaming Lives at the Edge

  John Agger, Ashley Hurwitz

  The future of streaming lives at the edge. Explore how Fastly reduces latency, boosts performance, and unlocks sustainable content delivery for media companies.

  November 24, 2025

  Edge network

  + 3 more

  

• Mitigating DDoS attacks faster and with even more accuracy

  Liam Mayron, David King

  Learn how Fastly's Adaptive Threat Engine update for DDoS Protection boosts mitigation accuracy and reduces Mean Time to Mitigation by 72% for the holidays.

  November 20, 2025

  Security

  Product

  

• Outages, Attacks, and a Need for Resilience

  Austin Spires

  Cloud outages are a stark reminder of our digital economy's fragility. Learn how Fastly mitigated a major traffic failover and concurrent DDoS attacks with zero disruption.

  November 19, 2025

  CDN & Delivery

  + 4 more

  

• Meet Image Optimizer in Compute: Flexible Image Workflows at the Edge

  James Sherry

  Fastly’s Image Optimizer is now available in Compute, letting developers build flexible, programmable image optimization workflows at the edge with full control and scale.

  November 18, 2025

  CDN & Delivery

  + 2 more

  

• Optimizing your multi-CDN infrastructure to improve performance

  Natalie Griffeth

  Learn how a multi-CDN infrastructure can, and should be, optimized for performance. Get tips from Fastly on considerations to evaluate against your current content delivery strategy.

  November 17, 2025

  CDN & Delivery

  Performance

  

• Wikipedia Tells AI Companies to "Stop Scraping"

  Natalie Griffeth

  Wikipedia cracks down on AI scraping, citing server strain and lost traffic. See why publishers are fighting back and turning to bot management.

  November 14, 2025

  Security

  Industry insights

  

• The New 2025 OWASP Top 10 List: What Changed, and What You Need to Know

  Natalie Griffeth

  The 2025 OWASP Top 10 list is here! Discover what changed, the two new categories, and how to secure your applications against emerging threats.

  November 10, 2025

  Security

  

• VCL Support for Parameters in Custom Subs

  Katherine Flavel

  Learn about Fastly's VCL syntax updates, including return values and parameters for custom subroutines, enabling better code reuse and abstraction.

  November 06, 2025

  DevOps

  Engineering

  

• Building Scalable Waiting Rooms with Fastly Compute

  Brock Norvell, Terri Allegretto, + 1 more

  Control website traffic and prevent server overload with Fastly Compute waiting rooms. Learn how to build scalable, customizable queues for high-demand events.

  November 05, 2025

  Compute

  + 4 more

  

• Optimizing Web Performance: Unpacking Fastly’s Intelligent Compression Defaults

  Stephen Stierer, Anjan Srinivas

  Optimize web performance with Fastly's intelligent compression defaults. Learn how Gzip and Brotli shrink payload sizes, reduce costs, and speed up your site.

  November 03, 2025

  CDN & Delivery

  + 2 more

  

• Resilience by Design: Lessons in Multi-Cloud Readiness

  Austin Spires

  Stay online when it matters most. Learn how Fastly's multi-cloud and edge strategies protect against outages, keeping your systems fast and reliable.

  October 30, 2025

  CDN & Delivery

  + 2 more

  

• Rewriting HTML with the Fastly JavaScript SDK

  Sy Brand

  Boost web performance with Fastly’s JS SDK v3.35.0. Use the new streaming HTML rewriter to customize, cache, and transform pages faster and more efficiently.

  October 30, 2025

  Compute

  + 4 more

  

• A Smarter ACME Challenge for a Multi-CDN World

  Shiloh Heurich

  Optimize your multi-CDN setup with Fastly's new dns-account-01 ACME challenge. Eliminate label collisions and enhance certificate management.

  October 29, 2025

  CDN & Delivery

  + 3 more

  

• Increasing the accessibility of managed security services

  Cody Arnold

  Make world-class protection accessible. Fastly’s new Managed Security Professional delivers 24/7 expert defense for your most critical apps and APIs.

  October 28, 2025

  Product

  Security

  

• Build for Scale: Fastly’s Principles of Distributed Decision Making and Self-healing Systems

  Brian Haberman

  Learn how Fastly's distributed decision-making and self-healing systems build a resilient, high-performance network. Discover key benefits and examples.

  October 23, 2025

  

• Your API Catalog Just Got an Upgrade

  Lorraine Bellon, Anna Jensen

  Discover, monitor, and secure your APIs with Fastly API Discovery. Get instant visibility, cut the noise, and keep your APIs secure and compliant.

  October 21, 2025

  Security

  Product

  

• 3 Costly Mistakes in App and API Security and How to Avoid Them

  David King, Ashley Hurwitz

  Avoid costly app and API security mistakes. Learn how to streamline WAF evaluation, estimate TCO, and embrace agile development for optimal security.

  October 20, 2025

  Security

  DevOps

  

• DDoS in September

  Liam Mayron, David King, + 1 more

  Fastly's September 2025 DDoS report details modern application attacks. Get insights and guidance to strengthen your security initiatives.

  October 17, 2025

  Security

  Industry insights