CVE-2026-53653
GetGrav · Grav
Grav is susceptible to a resource exhaustion vulnerability due to improper allocation limits, which can be exploited by unauthenticated attackers to cause a denial-of-service.
Executive summary
A resource allocation vulnerability in the Grav platform allows unauthenticated attackers to trigger denial-of-service conditions through resource exhaustion.
Vulnerability
This vulnerability (CWE-770) stems from the platform's failure to properly limit or throttle resource allocation. An unauthenticated attacker can send crafted requests that consume excessive system resources, leading to service unavailability.
Business impact
The primary impact of this vulnerability is system downtime, as an attacker can easily overwhelm the web platform by exhausting its resources. With a CVSS score of 8.7, this represents a significant risk to service availability, potentially impacting business operations and user access to the hosted content.
Remediation
Immediate Action: Upgrade to Grav version 1.7.53 or 2.0.0-rc.8 or newer to apply necessary resource throttling and allocation limits.
Proactive Monitoring: Monitor server resource utilization (CPU and Memory) and look for spikes in request rates that may indicate an ongoing denial-of-service attempt.
Compensating Controls: Deploy rate-limiting policies on the web server or load balancer to mitigate the impact of excessive requests from suspicious sources.
Exploitation status
Public Exploit Available: false
Analyst recommendation
Denial-of-service vulnerabilities in web platforms are highly disruptive. It is essential to apply the provided vendor updates to ensure that resource allocation is managed correctly, thereby preventing attackers from crashing the service.