CVE-2026-63452

suricata: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine

CVE-2026-63452 is fixed in suricata on 1 platform by DEBIAN-CVE-2026-63452 (version 1:8.0.6-1), released September 19, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0063
50th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
suricata · Debian 14 1:8.0.6-1 DEBIAN-CVE-2026-63452 Sep 19, 2026

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