Debian dsa-6443 : docker-cli - security update

high Nessus Plugin ID 349325

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6443 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-6443-1 [email protected] https://www.debian.org/security/ Aron Xu August 16, 2026 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : docker.io CVE ID : CVE-2026-33747 CVE-2026-33748 CVE-2026-33997 CVE-2026-34040 CVE-2026-41567 CVE-2026-41568 CVE-2026-42306

Multiple vulnerabilities were discovered in the Docker container engine and in the bundled BuildKit build toolkit, which may result in privilege escalation, arbitrary file access on the host, or bypass of authorization policies.

For the stable distribution (trixie), these problems have been fixed in version 26.1.5+dfsg1-9+deb13u1.

We recommend that you upgrade your docker.io packages.

For the detailed security status of docker.io please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/docker.io

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: [email protected]

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the docker-cli packages.

Plugin Details

Severity: High

ID: 349325

File Name: debian_DSA-6443.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 9/23/2026

Updated: 9/23/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.53

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-33747

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.2

Threat Score: 6.9

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-33748

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:docker-cli, p-cpe:/a:debian:debian_linux:docker-doc, p-cpe:/a:debian:debian_linux:docker.io, p-cpe:/a:debian:debian_linux:golang-github-docker-docker-dev

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/16/2026

Vulnerability Publication Date: 3/26/2026

Reference Information

CVE: CVE-2026-33747, CVE-2026-33748, CVE-2026-33997, CVE-2026-34040, CVE-2026-41567, CVE-2026-41568, CVE-2026-42306

Detections

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