SUSE-SU-2026:24410-1: important: Security update for docker

Thu Oct 29 08:38:13 UTC 2026

# Security update for docker

Announcement ID: SUSE-SU-2026:24410-1  
Release Date: 2026-10-23T09:04:02Z  
Rating: important  
References:

  * bsc#1073877
  * bsc#1099277
  * bsc#1262346
  * bsc#1265782
  * bsc#1266176
  * bsc#1266625
  * bsc#1267827
  * bsc#1268280
  * bsc#1268359
  * bsc#1271209
  * bsc#1278193

Cross-References:

  * CVE-2026-31431
  * CVE-2026-33814
  * CVE-2026-39821
  * CVE-2026-39984
  * CVE-2026-41567

CVSS scores:

  * CVE-2026-31431 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31431 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-31431 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-33814 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-33814 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-33814 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-33814 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39821 ( SUSE ):  9.1
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-39821 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-39821 ( NVD ):  9.6 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
  * CVE-2026-39821 ( NVD ):  8.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
  * CVE-2026-39984 ( SUSE ):  6.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-39984 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
  * CVE-2026-39984 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
  * CVE-2026-41567 ( SUSE ):  7.2 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
  * CVE-2026-41567 ( NVD ):  7.2 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
  * CVE-2026-41567 ( NVD ):  7.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected Products:

  * SUSE Linux Micro 6.2

An update that solves five vulnerabilities and has six fixes can now be
installed.

## Description:

This update for docker fixes the following issues:

Security issues fixed:

  * CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport
    when given bad SETTINGS_MAX_FRAME_SIZE (bsc#1265782).
  * CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only
    Punycode-encoded labels allows for validation bypass and privilege
    escalation (bsc#1266625).
  * CVE-2026-39984: github.com/sigstore/timestamp-authority/v2/pkg/verification:
    improper certificate validation can be used to bypass some authorization
    controls (bsc#1262346).
  * CVE-2026-41567: arbitrary code execution with full daemon privileges when a
    user uploads a compressed archive into that container (bsc#1267827).

Non security issue fixed:

  * SELinux CIL files are not shipped in Docker (bsc#1278193).

Changes for docker:

  * Update to Docker 29.7.2. See upstream changelog online at
    <https://docs.docker.com/engine/release-notes/29/#2972> fixes(bsc#1268280,
    bsc#1268359, bsc#1271209, bsc#1266176)
  * Update to buildx 0.36.1. See upstream changelog online at
    <https://github.com/docker/buildx/releases/tag/v0.36.1>

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Micro 6.2  
    zypper in -t patch SUSE-SL-Micro-6.2-1962

## Package List:

  * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    * docker-debuginfo-29.7.2_ce-160000.8.1
    * docker-buildx-0.36.1-160000.8.1
    * docker-29.7.2_ce-160000.8.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-31431.html
  * https://www.suse.com/security/cve/CVE-2026-33814.html
  * https://www.suse.com/security/cve/CVE-2026-39821.html
  * https://www.suse.com/security/cve/CVE-2026-39984.html
  * https://www.suse.com/security/cve/CVE-2026-41567.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1073877
  * https://bugzilla.suse.com/show_bug.cgi?id=1099277
  * https://bugzilla.suse.com/show_bug.cgi?id=1262346
  * https://bugzilla.suse.com/show_bug.cgi?id=1265782
  * https://bugzilla.suse.com/show_bug.cgi?id=1266176
  * https://bugzilla.suse.com/show_bug.cgi?id=1266625
  * https://bugzilla.suse.com/show_bug.cgi?id=1267827
  * https://bugzilla.suse.com/show_bug.cgi?id=1268280
  * https://bugzilla.suse.com/show_bug.cgi?id=1268359
  * https://bugzilla.suse.com/show_bug.cgi?id=1271209
  * https://bugzilla.suse.com/show_bug.cgi?id=1278193

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