EIP-2026-103512

PRE-CVE

Hiawatha WebServer 7.4 - Denial of Service

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103512. PoCs published by Rodrigo Escobar.

AI-analyzed exploit summary This exploit targets a Content-Length header miscalculation vulnerability in Hiawatha WebServer 7.4, causing a Denial of Service (DoS) by sending a malformed HTTP request with an excessively large Content-Length value. The PoC is a Perl script that crafts and sends the malicious request to the target server.

Description

Hiawatha WebServer 7.4 - Denial of Service

Exploits (1)

exploitdb WORKING POC
by Rodrigo Escobar · textdosmultiple
https://www.exploit-db.com/exploits/16939

This exploit targets a Content-Length header miscalculation vulnerability in Hiawatha WebServer 7.4, causing a Denial of Service (DoS) by sending a malformed HTTP request with an excessively large Content-Length value. The PoC is a Perl script that crafts and sends the malicious request to the target server.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Hiawatha WebServer 7.4
No auth needed
Prerequisites: Network access to the target server · Target server running Hiawatha WebServer 7.4
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026