UnratedFix available

DEBIAN-CVE-2026-63447

Type: advisorySource: OSV1 source record

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.

Announced 18 Sept 2026Source revision 1

Original source ↗

DEBIAN-CVE-2026-63447

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-63447

suricata

Source reference: /affected/0/package/name

Affected versions: 1:7.0.10-1
Source reference: /affected/0/versions
1:7.0.10-1+deb13u1
Source reference: /affected/0/versions
1:7.0.10-1+deb13u2
Source reference: /affected/0/versions
1:7.0.10-1+deb13u3
Source reference: /affected/0/versions
1:7.0.10-1+deb13u4
Source reference: /affected/0/versions
1:7.0.11-1
Source reference: /affected/0/versions
1:7.0.11-1~bpo13+1
Source reference: /affected/0/versions
1:8.0.0-1~exp1
Source reference: /affected/0/versions
1:8.0.0-1~exp2
Source reference: /affected/0/versions
1:8.0.0-1~exp4
Source reference: /affected/0/versions
1:8.0.0-1~exp5
Source reference: /affected/0/versions
1:8.0.1-1
Source reference: /affected/0/versions
1:8.0.1-2
Source reference: /affected/0/versions
1:8.0.1-3
Source reference: /affected/0/versions
1:8.0.1-3~bpo13+1
Source reference: /affected/0/versions
1:8.0.2-1
Source reference: /affected/0/versions
1:8.0.2-1~bpo13+1
Source reference: /affected/0/versions
1:8.0.3-1
Source reference: /affected/0/versions
1:8.0.3-1~bpo13+1
Source reference: /affected/0/versions
1:8.0.3-2~exp1
Source reference: /affected/0/versions
1:8.0.4-1
Source reference: /affected/0/versions
1:8.0.4-1~bpo13+1
Source reference: /affected/0/versions
1:8.0.5-1
Source reference: /affected/0/versions
1:8.0.5-1~bpo13+1
Source reference: /affected/0/versions
1:8.0.6-1
Source reference: /affected/0/versions
1:8.0.6-1~bpo13+1
Source reference: /affected/0/versions
1:8.0.7-1
Source reference: /affected/0/versions
1:8.0.7-1~bpo13+1
Source reference: /affected/0/versions
1:8.0.7-2~exp1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

suricata

Source reference: /affected/1/package/name

Affected versions: 1:7.0.10-1
Source reference: /affected/1/versions
1:7.0.11-1
Source reference: /affected/1/versions
1:7.0.11-1~bpo13+1
Source reference: /affected/1/versions
1:8.0.0-1~exp1
Source reference: /affected/1/versions
1:8.0.0-1~exp2
Source reference: /affected/1/versions
1:8.0.0-1~exp4
Source reference: /affected/1/versions
1:8.0.0-1~exp5
Source reference: /affected/1/versions
1:8.0.1-1
Source reference: /affected/1/versions
1:8.0.1-2
Source reference: /affected/1/versions
1:8.0.1-3
Source reference: /affected/1/versions
1:8.0.1-3~bpo13+1
Source reference: /affected/1/versions
1:8.0.2-1
Source reference: /affected/1/versions
1:8.0.2-1~bpo13+1
Source reference: /affected/1/versions
1:8.0.3-1
Source reference: /affected/1/versions
1:8.0.3-1~bpo13+1
Source reference: /affected/1/versions
1:8.0.3-2~exp1
Source reference: /affected/1/versions
1:8.0.4-1
Source reference: /affected/1/versions
1:8.0.4-1~bpo13+1
Source reference: /affected/1/versions
1:8.0.5-1
Source reference: /affected/1/versions
1:8.0.5-1~bpo13+1
Source reference: /affected/1/versions
1:8.0.6-1~bpo13+1
Source reference: /affected/1/versions
Fixed versions: 1:8.0.6-1
Source reference: /affected/1/ranges
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "suricata",
      "purl": "pkg:deb/debian/suricata?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "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",
      "1:7.0.11-1~bpo13+1",
      "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",
      "1:8.0.1-3~bpo13+1",
      "1:8.0.2-1",
      "1:8.0.2-1~bpo13+1",
      "1:8.0.3-1",
      "1:8.0.3-1~bpo13+1",
      "1:8.0.3-2~exp1",
      "1:8.0.4-1",
      "1:8.0.4-1~bpo13+1",
      "1:8.0.5-1",
      "1:8.0.5-1~bpo13+1",
      "1:8.0.6-1",
      "1:8.0.6-1~bpo13+1",
      "1:8.0.7-1",
      "1:8.0.7-1~bpo13+1",
      "1:8.0.7-2~exp1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63447.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "1:8.0.6-1"
          }
        ]
      }
    ],
    "package": {
      "name": "suricata",
      "purl": "pkg:deb/debian/suricata?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "1:7.0.10-1",
      "1:7.0.11-1",
      "1:7.0.11-1~bpo13+1",
      "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",
      "1:8.0.1-3~bpo13+1",
      "1:8.0.2-1",
      "1:8.0.2-1~bpo13+1",
      "1:8.0.3-1",
      "1:8.0.3-1~bpo13+1",
      "1:8.0.3-2~exp1",
      "1:8.0.4-1",
      "1:8.0.4-1~bpo13+1",
      "1:8.0.5-1",
      "1:8.0.5-1~bpo13+1",
      "1:8.0.6-1~bpo13+1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63447.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #25815 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 06:58:45 GMT
Publisher date: Fri, 18 Sep 2026 21:17:03 GMT

Read the original announcement