Monkey HTTP Server Use-After-Free Vulnerability in String Character Search Function Allowing Denial-of-Service

Vulnerability

A use-after-free vulnerability has been identified in the Monkey HTTP Server, specifically in the mk_string_char_search function within mk_core/mk_string.c. This vulnerability is present in Monkey through commit f37e984. It allows attackers to cause a denial-of-service condition by sending a crafted HTTP request to the server.

Impact

Exploitation of this vulnerability leads to a denial-of-service condition, causing the server to become unresponsive or unavailable.

Added: Jan 29, 2026, 8:29 PM
Updated: Jan 29, 2026, 8:29 PM

Vulnerability Rating

Custom Algorithm
spread
0.0
impact
2.5
exploitability
7.4
remediation
0.0
relevance
2.5
threat
0.0
urgency
2.9
incentive
4.2

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.