DEBIAN-CVE-2026-18726

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Source
https://security-tracker.debian.org/tracker/CVE-2026-18726
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18726.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-18726
Upstream
  • CVE-2026-18726
Published
2026-08-12T22:17:14Z
Modified
2026-09-14T17:00:38Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in open-iscsi. This vulnerability allows a remote attacker on the same local network segment to cause a Denial of Service (DoS) in the iscsiuio daemon. By sending a specially crafted Internet Control Message Protocol version 6 (ICMPv6) Router Advertisement with a zero-length option, the attacker can trigger an infinite loop. This leads to sustained CPU usage, rendering the daemon unresponsive and impacting system availability. A secondary risk of out-of-bounds reads exists with a short IPv6 payload, though no memory corruption or data exposure has been confirmed.

References

Affected packages

Debian:12 / open-iscsi

Package

Name
open-iscsi
Purl
pkg:deb/debian/open-iscsi?arch=source&distro=bookworm

Affected ranges

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

Affected versions

2.*
2.1.8-1
2.1.8-2
2.1.9-1
2.1.9-2
2.1.9-3
2.1.9-4
2.1.10-1
2.1.10-2
2.1.10-3
2.1.11-1
2.1.11-2
2.1.11-3
2.1.11-4
2.1.11-5
2.1.11-6
2.1.12-1
2.1.12-2
2.1.13-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18726.json"

Debian:13 / open-iscsi

Package

Name
open-iscsi
Purl
pkg:deb/debian/open-iscsi?arch=source&distro=trixie

Affected ranges

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

Affected versions

2.*
2.1.11-1
2.1.11-1+deb13u1
2.1.11-1+deb13u2
2.1.11-2
2.1.11-3
2.1.11-4
2.1.11-5
2.1.11-6
2.1.12-1
2.1.12-2
2.1.13-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18726.json"

Debian:14 / open-iscsi

Package

Name
open-iscsi
Purl
pkg:deb/debian/open-iscsi?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.1.13-1

Affected versions

2.*
2.1.11-1
2.1.11-2
2.1.11-3
2.1.11-4
2.1.11-5
2.1.11-6
2.1.12-1
2.1.12-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-18726.json"