In OISF LibHTP before 0.5.31, as used in Suricata 4.1.4 and other products, an HTTP…
Priority LOW 27CWE-459Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
In OISF LibHTP before 0.5.31, as used in Suricata 4.1.4 and other products, an HTTP protocol parsing error causes the http_header signature to not alert on a response with a single \r\n ending.
Why it matters now
EPSS 0.01355 71st percentileScored 2026-11-07
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 · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:oisf:libhtp:*:*:*:*:*:*:*:* | before 0.5.31 | Vulnerable | OISF |
| cpe:2.3:a:suricata-ids:suricata:4.1.4:*:*:*:*:*:*:* | 4.1.4 | Vulnerable | Suricata-ids |
- cpe:2.3:a:oisf:libhtp:*:*:*:*:*:*:*:* Versions before 0.5.31 Vulnerable ·OISF
- cpe:2.3:a:suricata-ids:suricata:4.1.4:*:*:*:*:*:*:* Versions 4.1.4 Vulnerable ·Suricata-ids
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-17420
- 2026-10-03 Alias added: GHSA-9gx8-hhv8-hw56
References
Sources
- CVE-2019-17420 · CVE Program
- CVE-2019-17420 · NVD
- FIRST EPSS
- GHSA-9gx8-hhv8-hw56 · GitHub Advisory Database · CC BY 4.0
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