CVE-2026-71418

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, DNS-over-HTTP/2 processing in rust/src/http2/http2.rs retains previously processed HTTP/2 DATA frame contents instead of clearing the internal buffer...

UBUNTU-CVE-2026-71418

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, DNS-over-HTTP/2 processing in rust/src/http2/http2.rs retains previously processed HTTP/2 DATA frame contents instead of clearing the internal buffer...

CVE-2026-71418

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, DNS-over-HTTP/2 processing in rust/src/http2/http2.rs retains previously processed HTTP/2 DATA frame contents instead of clearing the internal buffer...

UBUNTU-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, AppLayerParserSetTransactionInspectId in src/app-layer-parser.c uses an inverted guard and marks only already-inspected transactions as inspected. On flows...

EUVD-2026-83397

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, DNS-over-HTTP/2 processing in rust/src/http2/http2.rs retains previously processed HTTP/2 DATA frame contents instead of clearing the internal buffer...

CVE-2026-71418 Suricata doh2: crafted HTTP/2 DATA frames can cause quadratic CPU consumption

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, DNS-over-HTTP/2 processing in rust/src/http2/http2.rs retains previously processed HTTP/2 DATA frame contents instead of clearing the internal buffer...

CVE-2026-71418 Suricata doh2: crafted HTTP/2 DATA frames can cause quadratic CPU consumption

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, DNS-over-HTTP/2 processing in rust/src/http2/http2.rs retains previously processed HTTP/2 DATA frame contents instead of clearing the internal buffer...

CVE-2026-71418

Suricata is a network IDS/IPS/NMS engine. Affected versions are 8.0.0 through 8.0.6 . The vulnerability resides in DNS-over-HTTP/2 (DoH2) processing in rust/src/http2/http2.rs, where previously processed HTTP/2 DATA frame contents are retained in the internal buffer instead of being cleared. An a...

CVE-2026-71418

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, DNS-over-HTTP/2 processing in rust/src/http2/http2.rs retains previously processed HTTP/2 DATA frame contents instead of clearing the internal buffer...

CVE-2026-71418 Suricata doh2: crafted HTTP/2 DATA frames can cause quadratic CPU consumption

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, DNS-over-HTTP/2 processing in rust/src/http2/http2.rs retains previously processed HTTP/2 DATA frame contents instead of clearing the internal buffer...

CVE-2026-63447 Suricata ftp: crafted FTP traffic can cause quadratic CPU consumption

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.5 until 8.0.6, the FTP parser in src/app-layer-ftp.c can continue allocating transactions after app-layer.protocols.ftp.max-tx is reached while processing one large chunk...

CVE-2026-63448 Suricata smb: some SMB flows can cause resource exhaustion

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.17 and 8.0.6, the SMB parser can retain force-completed transactions on flows where Suricata sees payload in only one direction, including async-oneside flows, becaus...

CVE-2026-63452 Suricata http1: repeated brotli compression bombs can cause excessive CPU consumption

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...

CVE-2026-63452

Suricata (OISF), a network IDS/IPS/NSM engine, is affected in versions 8.0.0 through 8.0.6 . The HTTP/1 parser enforces a per-transaction decompression limit but does not cap the total number of small brotli compression bombs a single flow can submit. When the response-body-decompress-layer-limit...

CVE-2026-63452 Suricata http1: repeated brotli compression bombs can cause excessive CPU consumption

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...

CVE-2026-63452 Suricata http1: repeated brotli compression bombs can cause excessive CPU consumption

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...

CVE-2026-69184

c-ares is an asynchronous resolver library. Prior to 1.34.7, aresdnsnameparse enforces backward DNS compression pointers but does not bound the total pointer hops or assembled name length. A malicious DNS server can send a response containing a long descending pointer chain and many resource...

UBUNTU-CVE-2026-69184

c-ares is an asynchronous resolver library. Prior to 1.34.7, aresdnsnameparse enforces backward DNS compression pointers but does not bound the total pointer hops or assembled name length. A malicious DNS server can send a response containing a long descending pointer chain and many resource...

CVE-2026-69184 c-ares: CPU-exhaustion denial of service via unbounded DNS name compression pointer chains

c-ares is an asynchronous resolver library. Prior to 1.34.7, aresdnsnameparse enforces backward DNS compression pointers but does not bound the total pointer hops or assembled name length. A malicious DNS server can send a response containing a long descending pointer chain and many resource...

CVE-2026-69184

c-ares (asynchronous DNS resolver library) prior to 1.34.7 is affected by a CPU-exhaustion denial-of-service in ares_dns_name_parse(). The function enforces backward DNS compression pointers but does not bound total pointer hops or assembled name length, so a malicious DNS server can send a respo...