DEBIAN-CVE-2026-63448

See a problem?
Please try reporting it to the source first.

Source

https://security-tracker.debian.org/tracker/CVE-2026-63448

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63448.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-63448

Upstream

CVE-2026-63448

Published

2026-09-18T21:17:04Z

Modified

2026-09-19T12:00:08Z

Severity

5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/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. 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, because cleanup waits for inspection in the unseen direction. The transaction creation paths in rust/src/smb can exceed the intended SMB_MAX_TX bound, and cleanup repeatedly scans the growing list. Sustained one-directional SMB traffic can therefore cause unbounded per-flow state and CPU and memory exhaustion. This issue is fixed in versions 8.0.6 and 7.0.17.

References

https://security-tracker.debian.org/tracker/CVE-2026-63448

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-2026-63448.json"

Debian:14 / suricata