CVE-2026-63450
Suricata ftp: RETR/STOR before PORT/PASV can disable further IDS app-layer detection
Description
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 recoverable protocol event. The fatal state disables FTP application-layer parsing for the remainder of the TCP flow, so later commands can evade parser-dependent rules and logging; IPS mode instead drops the flow. This issue is fixed in version 8.0.6.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:HAttack ComplexityHigh
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:LIntegrityLow
A:NAvailabilityNone
Weaknesses
Affected Products
OISF
oss-projectaka suricata-update, suricata, libhtp
Exploitability
No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
References
https://github.com/OISF/suricata/commit/52490b8c26909772801afed98df63a6d62f3af18
github.com
https://github.com/OISF/suricata/commit/feb0ff91159cea474a983adf92e4b56fb16e4ffc
github.com
https://github.com/OISF/suricata/pull/15704
github.com
and 3 more references View all →
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