CVE Watch18 sept 2026

CVE-2026-63446

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6

CVSS

7.5

Alto

EPSS

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KEV

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Exploit Today

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0-100

Publicado: 18 sept 2026 · Última mod.: 18 sept 2026 · CWE-401 · CWE-407

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, AppLayerParserSetTransactionInspectId() in src/app-layer-parser.c uses an inverted guard and marks only already-inspected transactions as inspected. On flows passed by a pass rule or pass-the-flow exception policy, detection is skipped, so completed transactions remain unmarked, are never freed, and are repeatedly rescanned. The per-flow list can grow without bound with quadratic cleanup cost, causing CPU and memory exhaustion. This issue is fixed in version 8.0.6.

Referencias oficiales

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