DEBIAN-CVE-2026-63447

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2026-63447
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63447.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-63447
Upstream
Published
2026-09-18T21:17:03Z
Modified
2026-09-19T12:00:07Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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 of FTP command data. The oversized transaction list is repeatedly processed with quadratic complexity after the too_many_transactions event, allowing crafted FTP traffic to degrade packet processing, reduce monitoring visibility, or cause denial of service. This issue is fixed in version 8.0.6.

References

Affected packages

Debian:13 / suricata

Package

Name
suricata
Purl
pkg:deb/debian/suricata?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:7.*
1:7.0.10-1
1:7.0.10-1+deb13u1
1:7.0.10-1+deb13u2
1:7.0.10-1+deb13u3
1:7.0.10-1+deb13u4
1:7.0.11-1~bpo13+1
1:7.0.11-1
1:8.*
1:8.0.0-1~exp1
1:8.0.0-1~exp2
1:8.0.0-1~exp4
1:8.0.0-1~exp5
1:8.0.1-1
1:8.0.1-2
1:8.0.1-3~bpo13+1
1:8.0.1-3
1:8.0.2-1~bpo13+1
1:8.0.2-1
1:8.0.3-1~bpo13+1
1:8.0.3-1
1:8.0.3-2~exp1
1:8.0.4-1~bpo13+1
1:8.0.4-1
1:8.0.5-1~bpo13+1
1:8.0.5-1
1:8.0.6-1~bpo13+1
1:8.0.6-1
1:8.0.7-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63447.json"

Debian:14 / suricata

Package

Name
suricata
Purl
pkg:deb/debian/suricata?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:8.0.6-1

Affected versions

1:7.*
1:7.0.10-1
1:7.0.11-1~bpo13+1
1:7.0.11-1
1:8.*
1:8.0.0-1~exp1
1:8.0.0-1~exp2
1:8.0.0-1~exp4
1:8.0.0-1~exp5
1:8.0.1-1
1:8.0.1-2
1:8.0.1-3~bpo13+1
1:8.0.1-3
1:8.0.2-1~bpo13+1
1:8.0.2-1
1:8.0.3-1~bpo13+1
1:8.0.3-1
1:8.0.3-2~exp1
1:8.0.4-1~bpo13+1
1:8.0.4-1
1:8.0.5-1~bpo13+1
1:8.0.5-1
1:8.0.6-1~bpo13+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63447.json"