CVEvulnerability
CVE-2026-63452
7.5 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-09-18
- 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-400, CWE-409
Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the HTTP/1 parser limits decompression work per transaction but does not limit how many small brotli compression bombs a single flow can submit. With response-body-decompress-layer-limit enabled, repeated compressed responses make the decompression paths in rust/htp perform expensive work for every transaction, degrading packet processing and potentially causing loss of monitoring visibility or denial of service. This issue is fixed in version 8.0.6.
Affected configurations
• oisf suricata (>= 8.0.0 < 8.0.6)
Related
References
- https://github.com/OISF/suricata/commit/392b6aee2971a4b5e573850f5d832112509bcb5f Patch
- https://github.com/OISF/suricata/commit/e369bf29ee5bbd0cdf6a98dc4a3357ba43c86a88 Patch
- https://github.com/OISF/suricata/releases/tag/suricata-8.0.6 Release Notes
- https://github.com/OISF/suricata/security/advisories/GHSA-j9cx-w9xm-5x84 Mitigation, Vendor Advisory
- https://redmine.openinfosecfoundation.org/issues/8694 Permissions Required