Category: Web Server Problems

Problems related to web servers

ID	Title	Description	Category	Technology	Tags
CRE-2025-0055 Medium Impact: 8/10 Mitigation: 3/10	Nginx upstream buffer size too small	Nginx reports that an upstream server is sending headers that exceed the configured buffer size limits. This typically happens when the upstream application sends responses with large headers, cookies, or other header fields that don't fit in the default buffer allocation. When this occurs, Nginx cannot properly proxy the response to clients, resulting in HTTP errors.	Web Server Problems	nginx	Nginx Configuration Proxy Header Size Buffer
CRE-2025-0056 Medium Impact: 8/10 Mitigation: 3/10	NGINX worker connections limit exceeded	NGINX has reported that the configured worker_connections limit has been reached. This indicates that the web server has exhausted the available connection slots for handling concurrent client requests. When this limit is reached, new connection attempts may be rejected until existing connections are closed, causing service degradation or outages.	Web Server Problems	nginx	Nginx Capacity Issue Web Server Configuration Public