SUSE alert SUSE-SU-2026:22424-1 (containerd)

From:
             
 
SLE-SECURITY-UPDATES <null@suse.de>
To:
             
 
sle-security-updates@lists.suse.com
Subject:
             
 
SUSE-SU-2026:22424-1: important: Security update for containerd
Date:
             
 
Fri, 03 Jul 2026 08:38:21 -0000
Message-ID:
             
 
<178306790179.117.12368945744055880731@2afce7b7fe24>
# Security update for containerd

Announcement ID: SUSE-SU-2026:22424-1  
Release Date: 2026-06-25T09:00:00Z  
Rating: important  
References:

  * bsc#1262948
  * bsc#1265794
  * bsc#1266640

  
Cross-References:

  * CVE-2026-33814
  * CVE-2026-34986
  * CVE-2026-39821

  
CVSS scores:

  * 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-2026-34986 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-34986 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-34986 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-34986 ( 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

  
Affected Products:

  * SUSE Linux Micro 6.0

  
  
An update that solves three vulnerabilities can now be installed.

## Description:

This update for containerd fixes the following issues

  * CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport
    when given bad SETTINGS_MAX_FRAME_SIZE (bsc#1265794).
  * CVE-2026-34986: github.com/go-jose/go-jose/v3: crafted JWE input with a
    missing encrypted key can lead to a denial of service (bsc#1262948).
  * CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only
    Punycode-encoded labels allows for validation bypass and privilege
    escalation (bsc#1266640).

## 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 6.0  
    zypper in -t patch SUSE-SLE-Micro-6.0-769=1

## Package List:

  * SUSE Linux Micro 6.0 (aarch64 s390x x86_64)
    * containerd-1.7.29-3.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-33814.html
  * https://www.suse.com/security/cve/CVE-2026-34986.html
  * https://www.suse.com/security/cve/CVE-2026-39821.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1262948
  * https://bugzilla.suse.com/show_bug.cgi?id=1265794
  * https://bugzilla.suse.com/show_bug.cgi?id=1266640



Attachment: None (type=text/html)
(HTML attachment elided)