CVE-2019-17502: Hydra Project Hydra

High severity, CVSS 7.5. EPSS: 1.7% chance of exploitation in the next 30 days.

Hydra through 0.1.8 has a NULL pointer dereference and daemon crash when processing POST requests that lack a Content-Length header. read.c, request.c, and util.c contribute to this. The process_header_end() function calls boa_atoi(), which ultimately calls atoi() on a NULL pointer.

Affected products

• Hydra Project Hydra: up to and including 0.1.8

Published 2019-10-12. Last modified 2026-06-17.