CVE-2026-63446 Suricata app-layer: passed flows can retain transactions, causing resource exhaustion

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...

CVE-2026-63446 Suricata app-layer: passed flows can retain transactions, causing resource exhaustion

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...

CVE-2026-63446

Suricata (OISF) versions 8.0.0 through 8.0.6 are affected by a resource exhaustion flaw in the application-layer parser. The function AppLayerParserSetTransactionInspectId() in src/app-layer-parser.c uses an inverted guard , marking only already-inspected transactions as inspected. On flows match...