EIP-2026-115851

PRE-CVE

Mongoose 2.11 - 'Content-Length' HTTP Header Remote Denial of Service

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-115851. PoCs published by JohnLeitch.

AI-analyzed exploit summary This exploit demonstrates a denial-of-service vulnerability in Mongoose web server by sending a malformed HTTP request with a negative Content-Length header. The crafted input causes the server to crash due to improper handling of the invalid value.

Description

Mongoose 2.11 - 'Content-Length' HTTP Header Remote Denial of Service

Exploits (1)

exploitdb WORKING POC VERIFIED
by JohnLeitch · pythondoswindows
https://www.exploit-db.com/exploits/35158

This exploit demonstrates a denial-of-service vulnerability in Mongoose web server by sending a malformed HTTP request with a negative Content-Length header. The crafted input causes the server to crash due to improper handling of the invalid value.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Mongoose 2.11
No auth needed
Prerequisites: Network access to the target Mongoose server
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026