CVE-2026-63450Suricata ftp: RETR/STOR before PORT/PASV can disable further IDS app-layer detection
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 3.7 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weakness (CWE)
- CWE-755
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Sep 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
OISF suricata oisf:suricata (from the name) | before 8.0.6 | CNA record |
oisf suricata oisf:suricata | before 8.0.6 | NVD |
References
- https://github.com/OISF/suricata/security/advisories/GHSA-56wx-7hqh-wfgrx-refsource-confirm, vendor-advisory
- https://github.com/OISF/suricata/pull/15704x-refsource-misc, patch
- https://github.com/OISF/suricata/commit/52490b8c26909772801afed98df63a6d62f3af18x-refsource-misc, patch
- https://github.com/OISF/suricata/commit/feb0ff91159cea474a983adf92e4b56fb16e4ffcx-refsource-misc, patch
- https://github.com/OISF/suricata/releases/tag/suricata-8.0.6x-refsource-misc, release-notes
- https://redmine.openinfosecfoundation.org/issues/8659x-refsource-misc, permissions-required
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.