CVE-2026-63452
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| OISF | suricata | >= 8.0.0, < 8.0.6 | affected |
Weaknesses
- CWE-400: CWE-400: Uncontrolled Resource Consumption
- CWE-409: CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)
References
- https://github.com/OISF/suricata/security/advisories/GHSA-j9cx-w9xm-5x84
- https://github.com/OISF/suricata/commit/392b6aee2971a4b5e573850f5d832112509bcb5f
- https://github.com/OISF/suricata/commit/e369bf29ee5bbd0cdf6a98dc4a3357ba43c86a88
- https://github.com/OISF/suricata/releases/tag/suricata-8.0.6
- https://redmine.openinfosecfoundation.org/issues/8694
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