Bug 2538241 (CVE-2026-63452) - CVE-2026-63452 Suricata: Suricata: Denial of Service via repeated Brotli compression bombs
Summary: CVE-2026-63452 Suricata: Suricata: Denial of Service via repeated Brotli comp...
Keywords:
Status: NEW
Alias: CVE-2026-63452
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2539204
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-22 17:29 UTC by OSIDB Bzimport
Modified: 2026-09-23 08:37 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-09-22 17:29:10 UTC
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.


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