CVE-2026-63448

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-2026-57229

Suricata's SMTP MIME parser (rust/src/mime/smtp.rs) in versions 8.0.0 through 8.0.6 fails to fully reset state when processing Content-Type: message/rfc822 encapsulation. An outer MIME part's filename or Content-Transfer-Encoding state leaks into the inner message, allowing a crafted email to byp...

CVE-2026-57229 Suricata smtp/mime: incomplete state reset allows detection bypass

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the SMTP MIME parser in rust/src/mime/smtp.rs does not fully reset state when processing Content-Type: message/rfc822 encapsulation. An outer MIME part's...

CVE-2026-61720

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the SF2 parser computes the DMOD modulator count as chunk.size / SFMODSIZE - 1 without rejecting chunks smaller than one record. A crafted SF2 file containing a zero-sized DMOD chunk makes the...

CVE-2026-61722

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates articulation chunks using the unsigned expression cbsize + connblocks 12 without first ensuring that the multiplication and addition fit in 32 bits. A crafted DLS...

CVE-2026-61723

FluidSynth is a software synthesizer based on the SoundFont 2 specifications. From 2.5.0 until 2.5.6, the native DLS parser validates ptbl chunks with the unsigned expression cues 4 + cbsize without checking whether the multiplication and addition fit in 32 bits. A crafted DLS file can supply a...

CVE-2026-57224

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the DHCP parser in rust/src/dhcp/dhcp.rs creates stateless transactions without recording their packet direction with AppLayerTxData::fordirection, so a...

DEBIAN-CVE-2026-57224

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the DHCP parser in rust/src/dhcp/dhcp.rs creates stateless transactions without recording their packet direction with AppLayerTxData::fordirection, so a...

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...

EUVD-2026-83390

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-2026-57227

Suricata (a network IDS/IPS/NNSM engine) has a denial-of-service vulnerability in its MQTT parser (rust/src/mqtt/mqtt.rs). The root cause is that repeated PUBREC or PUBREL messages can be appended to a single transaction without any limit, allowing crafted MQTT traffic to grow transaction state i...

CVE-2026-57227 Suricata mqtt: unbounded resource consumption from repeated pubrec and pubrel messages

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 7.0.0 until 7.0.17 and 8.0.6, the MQTT parser in rust/src/mqtt/mqtt.rs permits repeated PUBREC or PUBREL messages to be appended to one transaction without a limit. Crafted...

EUVD-2026-83388

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 7.0.0 until 7.0.17 and 8.0.6, the MQTT parser in rust/src/mqtt/mqtt.rs permits repeated PUBREC or PUBREL messages to be appended to one transaction without a limit. Crafted...

CVE-2026-63450 Suricata ftp: RETR/STOR before PORT/PASV can disable further IDS app-layer detection

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 8.0.6, the FTP parser in src/app-layer-ftp.c treats a RETR or STOR command sent before PORT or PASV negotiation as a fatal application-layer error instead of a recoverabl...

EUVD-2026-83387

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 8.0.6, the FTP parser in src/app-layer-ftp.c treats a RETR or STOR command sent before PORT or PASV negotiation as a fatal application-layer error instead of a recoverabl...

CVE-2026-63450 Suricata ftp: RETR/STOR before PORT/PASV can disable further IDS app-layer detection

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 8.0.6, the FTP parser in src/app-layer-ftp.c treats a RETR or STOR command sent before PORT or PASV negotiation as a fatal application-layer error instead of a recoverabl...

CVE-2026-63450

The Suricata network Intrusion Detection System (IDS) and Intrusion Prevention System (IPS) is vulnerable in versions prior to 8.0.6 due to a flaw in the FTP parser located in src/app-layer-ftp.c. The parser incorrectly treats a RETR or STOR command sent before PORT or PASV negotiation as a fatal...

EUVD-2026-83384

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the SIP parser in rust/src/sip/parser.rs stores request and response body lengths in 16-bit fields. A SIP body larger than 65,536 bytes can truncate the...

CVE-2026-63449

Suricata versions 8.0.0 through 8.0.6 are vulnerable to a flaw in the SIP parser (specifically in rust/src/sip/parser.rs). The parser incorrectly uses 16-bit fields to store request and response body lengths. Consequently, a SIP body exceeding 65,536 bytes causes the length to truncate, preventin...