CVE-2019-17502

7.5 highEPSS 1.7%

High (7.5) in hydra project hydra. 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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 1.7% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2019-10-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

hydra_project:hydra

References

http://hydra.hellug.gr
https://gist.github.com/fxb6476/0b9883a88ff2ca40de46a8469834e16c
http://hydra.hellug.gr
https://gist.github.com/fxb6476/0b9883a88ff2ca40de46a8469834e16c

Check your stack JSON