SUSE-SU-2026:2401-1: critical: Security update for kubevirt-1.6

Mon Jun 15 20:30:18 UTC 2026

# Security update for kubevirt-1.6

Announcement ID: SUSE-SU-2026:2401-1  
Release Date: 2026-06-15T15:34:35Z  
Rating: critical  
References:

  * bsc#1251420
  * bsc#1251615
  * bsc#1253559
  * bsc#1253935
  * bsc#1254014
  * bsc#1260234
  * bsc#1265467

Cross-References:

  * CVE-2025-47911
  * CVE-2025-47913
  * CVE-2025-47914
  * CVE-2025-58181
  * CVE-2025-58190
  * CVE-2026-33186
  * CVE-2026-7374

CVSS scores:

  * CVE-2025-47911 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2025-47911 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-47911 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-47911 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-47913 ( 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-2025-47913 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-47913 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-47914 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2025-47914 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-47914 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-58181 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2025-58181 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-58181 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-58190 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2025-58190 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-58190 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2025-58190 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-33186 ( SUSE ):  8.6
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-33186 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-33186 ( NVD ):  9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-7374 ( SUSE ):  9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-7374 ( NVD ):  9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Products:

  * Containers Module 15-SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

An update that solves seven vulnerabilities can now be installed.

## Description:

This update for kubevirt-1.6 fixes the following issues

Update to version 1.6.6, fixes various go embedded security issues:

  * CVE-2025-47911: golang.org/x/net/html: various algorithms with quadratic
    complexity when parsing HTML documents (bsc#1251420).
  * CVE-2025-47913: golang.org/x/crypto/ssh/agent: client process termination
    when receiving an unexpected message type in response to a key listing or
    signing request (bsc#1253559).
  * CVE-2025-47914: golang.org/x/crypto/ssh/agent: non validated message size
    can cause a panic due to an out of bounds read (bsc#1254014).
  * CVE-2025-58181: golang.org/x/crypto/ssh: invalidated number of mechanisms
    can cause unbounded memory consumption (bsc#1253935).
  * CVE-2025-58190: golang.org/x/net/html: excessive memory consumption by
    `html.ParseFragment` when processing specially crafted input (bsc#1251615).
  * CVE-2026-7374: virt-handler: Privilege escalation and node compromise via
    symlink following vulnerability (bsc#1265467).
  * CVE-2026-33186: google.golang.org/grpc: authorization bypass due to improper
    validation of the HTTP/2 :path pseudo- header (bsc#1260234).

Release notes: https://github.com/kubevirt/kubevirt/releases/tag/v1.6.6

## 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:

  * Containers Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Containers-15-SP7-2026-2401=1

## Package List:

  * Containers Module 15-SP7 (aarch64 x86_64)
    * kubevirt-1.6-manifests-1.6.6-150700.15.7.1
    * kubevirt-1.6-virtctl-1.6.6-150700.15.7.1
    * kubevirt-1.6-virtctl-debuginfo-1.6.6-150700.15.7.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-47911.html
  * https://www.suse.com/security/cve/CVE-2025-47913.html
  * https://www.suse.com/security/cve/CVE-2025-47914.html
  * https://www.suse.com/security/cve/CVE-2025-58181.html
  * https://www.suse.com/security/cve/CVE-2025-58190.html
  * https://www.suse.com/security/cve/CVE-2026-33186.html
  * https://www.suse.com/security/cve/CVE-2026-7374.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1251420
  * https://bugzilla.suse.com/show_bug.cgi?id=1251615
  * https://bugzilla.suse.com/show_bug.cgi?id=1253559
  * https://bugzilla.suse.com/show_bug.cgi?id=1253935
  * https://bugzilla.suse.com/show_bug.cgi?id=1254014
  * https://bugzilla.suse.com/show_bug.cgi?id=1260234
  * https://bugzilla.suse.com/show_bug.cgi?id=1265467

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