CVEvulnerability
CVE-2026-46387
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-09-10
- Last modified
- 2026-09-28
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-409
Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, Suricata's HTTP/2 decompression path could grow the decompressed response-body buffer without an effective upper bound. A crafted HTTP/2 DATA payload using a high compression ratio, such as gzip, deflate, or brotli compressed data, could cause Suricata to allocate excessive memory while decompressing the payload. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable HTTP2.
Affected configurations
• oisf suricata (< 7.0.16)
• oisf suricata (>= 8.0.0 < 8.0.5)
Related
Weakness · CWE (1)
- CWE-409 Improper Handling of Highly Compressed Data (Data Amplification) weakness
References
- https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315 Release Notes
- https://github.com/OISF/suricata/security/advisories/GHSA-45p7-j5wm-8wrx Mitigation, Vendor Advisory
- https://redmine.openinfosecfoundation.org/issues/8513 Permissions Required