Hydra through 0.1.8 has a NULL pointer dereference and daemon crash when processing POST…
Priority LOW 36CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
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.
Why it matters now
EPSS 0.01704 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hydra_project:hydra:*:*:*:*:*:*:*:* | up to 0.1.8 | Vulnerable | Hydra Project |
- cpe:2.3:a:hydra_project:hydra:*:*:*:*:*:*:*:* Versions up to 0.1.8 Vulnerable ·Hydra Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2019-17502
- 2026-10-03 Alias added: GHSA-j7jq-vqm4-w5q8
References
Sources
- CVE-2019-17502 · CVE Program
- CVE-2019-17502 · NVD
- FIRST EPSS
- GHSA-j7jq-vqm4-w5q8 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-17502 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences