Denial Of Service (DoS)

ai.h2o, h2o-core is vulnerable to Denial Of Service DoS. The vulnerability is due to the /3/Parse endpoint constructing a regular expression from a user-specified string, which is then applied to another user-specified string, allowing an attacker to send multiple simultaneous requests and exhaus...

H2O Vulnerable to Denial of Service (DoS) via `/3/Parse` Endpoint

A vulnerability in the /3/Parse endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service DoS attack. The endpoint uses a user-specified string to construct a regular expression, which is then applied to another user-specified string. By sending multiple simultaneous requests, an...