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CVE-2026-63452 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/OISF/suricata/commit/392b6aee2971a4b5e573850f5d832112509bcb5f	[email protected]
https://github.com/OISF/suricata/commit/e369bf29ee5bbd0cdf6a98dc4a3357ba43c86a88	[email protected]
https://github.com/OISF/suricata/releases/tag/suricata-8.0.6	[email protected]
https://github.com/OISF/suricata/security/advisories/GHSA-j9cx-w9xm-5x84	[email protected]
https://redmine.openinfosecfoundation.org/issues/8694	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-400	Uncontrolled Resource Consumption	[email protected]
CWE-409	Improper Handling of Highly Compressed Data (Data Amplification)	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 21, 2026	CVE Modified	CISA-ADP
Sep 18, 2026	New CVE Received	[email protected]