Security blog

December 14

We’re sharing our latest data and new insights into the Log4j/Log4Shell vulnerability (CVE-2021-44228 + CVE-2021-45046) in this post in order to help the engineering community cope with the…

December 10

CVE-2021-44228 is a Remote Code Execution vulnerability in the Apache Log4j library being actively exploited. We provide our observations into the exploit and a summary of its impact.

December 9

The web’s infrastructure — and the applications we build on it — must constantly evolve to meet the ever-transforming expectations of modern and future end users. We’ve gathered five lessons…

December 7

In this post, we’ll show how you can use information from an origin response to add an abuse IP address to our penalty box. We've been touting the promise of security at the edge, and this…

December 1

To create more secure and resilient web experiences, we must design, build, and execute applications with security top of mind, and consider how the lessons of the past 30 years inform how…

November 23

Many websites today are really applications, and we should be building them as such. To do that, we need application architectures and networks that are capable of supporting fast, secure…

November 17

As we look back to celebrate the 30th anniversary of the website, it’s also worth thinking about the next 30 years. There are a couple of areas where we — as engineers, developers, and…

November 11

Compute@Edge, our serverless compute environment, can be used to solve headaches dealing with attackers looking to modify and manipulate resources. In this post, we tell you how.

October 18

Our Security Research Team provides guidance on how to address CVE-2021-40438, a vulnerability in Apache HTTP Server version 2.4.48 and earlier, by patching impacted version(s) and enabling…

October 7

The recent Apache HTTP Server vulnerability (CVE-2021-41773) is reportedly being exploited in the wild. Fastly already detects this vulnerability, but our next-gen WAF customers can also…

October 4

Organizations implementing DevOps practices often sacrifice security for speed, exposing them to potential threats. In reality though, many DevOps practices are already primed for security…

September 30

Forrester’s 2021 Annual State of Application Security Report stresses the need for updated application security tools that can be easily integrated into development plans and architecture.