envoyproxy — Vulnerabilities & Security Advisories 108

Envoyproxy serves as a high-performance, open-source edge and service proxy, primarily deployed in cloud-native environments to manage ingress and egress traffic. Despite its architectural robustness, the project has accumulated 73 recorded Common Vulnerabilities and Exposures, reflecting the complexity of its extensive feature set. Historically, these security flaws predominantly involve memory corruption issues, such as buffer overflows and use-after-free errors, which can lead to remote code execution or denial-of-service conditions. While cross-site scripting and privilege escalation are less frequent, configuration errors and parsing vulnerabilities remain significant risks. Notable incidents often stem from improper input validation in HTTP/2 or gRPC handling, allowing attackers to crash proxies or bypass access controls. Continuous patching and strict configuration management are essential for maintaining the integrity of deployments relying on this critical infrastructure component.