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.
Metrics
Affected Vendors & Products
References
History
Mon, 28 Sep 2026 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:* |
Mon, 21 Sep 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Sun, 20 Sep 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Oisf
Oisf suricata |
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| Vendors & Products |
Oisf
Oisf suricata |
Fri, 18 Sep 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Suricata http1: repeated brotli compression bombs can cause excessive CPU consumption | |
| Weaknesses | CWE-400 CWE-409 |
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| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-09-18T20:16:51.951Z
Updated: 2026-09-21T18:19:52.084Z
Reserved: 2026-07-16T19:35:57.768Z
Link: CVE-2026-63452
Updated: 2026-09-21T18:19:48.781Z
Status : Analyzed
Published: 2026-09-18T21:17:04.667
Modified: 2026-09-28T18:40:07.333
Link: CVE-2026-63452
No data.