CVE-2026-26446
Stomper · Stomper
Stomper version 5e2741e is susceptible to a denial of service vulnerability where an unauthenticated client can trigger a server process termination by closing a socket during specific data exchanges.
Executive summary
An unauthenticated denial of service vulnerability in Stomper 5e2741e allows remote attackers to crash the server process by manipulating TCP connection states.
Vulnerability
The application fails to handle SIGPIPE signals correctly when a broker transmits data to a client that has already closed its connection. This allows any unauthenticated attacker to force an immediate process termination by closing the socket at critical intervals.
Business impact
The exploitation of this vulnerability results in a complete denial of service for the affected Stomper instance, leading to significant service disruption and unavailability of dependent systems. With a CVSS score of 7.5, the risk is categorized as high because the attack vector is network-based, requires no authentication, and involves minimal complexity to execute.
Remediation
Immediate Action: Since an official patch is currently unknown, administrators should restrict network access to the Stomper service to trusted IP ranges only to reduce the attack surface.
Proactive Monitoring: Monitor server process logs for repeated crashes or unexpected terminations, and investigate any spikes in connection reset activity from external sources.
Compensating Controls: Deploy a network-level firewall or load balancer to inspect and limit traffic patterns, which may help mitigate attempts to intentionally trigger socket-based connection failures.
Exploitation status
Public Exploit Available: Unknown
Analyst recommendation
Given the ease of triggering this denial of service, organizations utilizing Stomper 5e2741e must prioritize network isolation for the affected service. Security teams should maintain close contact with the vendor for the release of an official update and perform regular integrity checks on their service availability.