fastly — Vulnerabilities & Security Advisories 5

Fastly provides a content delivery network (CDN) and edge computing platform to optimize website performance and security. Historically, the service has been susceptible to remote code execution (RCE) and cross-site scripting (XSS) vulnerabilities, often stemming from misconfigurations or flaws in its edge logic. In 2020, a critical WAF misconfiguration exposed numerous customer websites, while a 2021 RCE vulnerability in its image optimization service allowed attackers to execute arbitrary code. Despite these incidents, Fastly maintains a relatively low CVE count compared to other major cloud providers, with its security posture generally improving over time through enhanced validation and patching processes.