SUSE-SU-2026:20950-1: important: Security update for cockpit

[SLE-UPDATES]

# Security update for cockpit

Announcement ID: SUSE-SU-2026:20950-1  
Release Date: 2026-03-27T09:53:17Z  
Rating: important  
References:

  * bsc#1258641
  * bsc#1259845

  
Cross-References:

  * CVE-2026-26996
  * CVE-2026-27135

  
CVSS scores:

  * CVE-2026-26996 ( 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-26996 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-26996 ( NVD ):  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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-26996 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-27135 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-27135 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-27135 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * SUSE Linux Micro 6.0
  * SUSE Linux Micro 6.1

  
  
An update that solves two vulnerabilities can now be installed.

## Security update for cockpit

### Description:

This update for cockpit fixes the following issue:

  * CVE-2026-26996: minimatch: ReDoS when glob pattern contains many consecutive
    wildcards followed by a literal character that doesn't appear in the test
    string (bsc#1258641).

## Security update for nghttp2

### Description:

This update for nghttp2 fixes the following issue:

  * CVE-2026-27135: assertion failure due to missing state validation can lead
    to DoS (bsc#1259845).

## 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 6.1  
    zypper in -t patch SUSE-SLE-Micro-6.1-464=1

  * SUSE Linux Micro 6.0  
    zypper in -t patch SUSE-SLE-Micro-6.0-645=1

## Package List:

  * SUSE Linux Micro 6.1 (aarch64 ppc64le s390x x86_64)
    * libnghttp2-14-1.52.0-slfo.1.1_2.1
    * libnghttp2-14-debuginfo-1.52.0-slfo.1.1_2.1
    * nghttp2-debugsource-1.52.0-slfo.1.1_2.1
  * SUSE Linux Micro 6.0 (aarch64 x86_64)
    * cockpit-debuginfo-309-9.1
    * cockpit-ws-309-9.1
    * cockpit-bridge-debuginfo-309-9.1
    * cockpit-bridge-309-9.1
    * cockpit-ws-debuginfo-309-9.1
    * cockpit-309-9.1
    * cockpit-debugsource-309-9.1
  * SUSE Linux Micro 6.0 (noarch)
    * cockpit-storaged-309-9.1
    * cockpit-selinux-309-9.2
    * cockpit-networkmanager-309-9.2
    * cockpit-system-309-9.1
    * cockpit-networkmanager-309-9.1
    * cockpit-storaged-309-9.2
    * cockpit-system-309-9.2
    * cockpit-selinux-309-9.1
  * SUSE Linux Micro 6.0 (s390x)
    * cockpit-bridge-309-9.2
    * cockpit-ws-debuginfo-309-9.2
    * cockpit-bridge-debuginfo-309-9.2
    * cockpit-debugsource-309-9.2
    * cockpit-debuginfo-309-9.2
    * cockpit-ws-309-9.2
    * cockpit-309-9.2

## References:

  * https://www.suse.com/security/cve/CVE-2026-26996.html
  * https://www.suse.com/security/cve/CVE-2026-27135.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1258641
  * https://bugzilla.suse.com/show_bug.cgi?id=1259845

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