SUSE-SU-2026:2847-1: important: Security update for krb5

[SLE-UPDATES]

# Security update for krb5

Announcement ID: SUSE-SU-2026:2847-1  
Release Date: 2026-07-10T11:38:37Z  
Rating: important  
References:

  * bsc#1268131

  
Cross-References:

  * CVE-2026-11850

  
CVSS scores:

  * CVE-2026-11850 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H
  * CVE-2026-11850 ( NVD ):  5.0 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:H

  
Affected Products:

  * openSUSE Leap 15.5
  * SUSE Linux Enterprise High Performance Computing 15 SP5
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  * SUSE Linux Enterprise Micro 5.5
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server 15 SP5 LTSS
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for krb5 fixes the following issue

  * CVE-2026-11850: integer underflow in berval2tl_data() leads to heap out-of-
    bounds read (bsc#1268131).

## 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 Enterprise Micro 5.5  
    zypper in -t patch SUSE-SLE-Micro-5.5-2026-2847=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2847=1

  * SUSE Linux Enterprise Server 15 SP5 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-2847=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-2847=1

  * openSUSE Leap 15.5  
    zypper in -t patch SUSE-2026-2847=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2847=1

## Package List:

  * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * krb5-devel-1.20.1-150500.3.23.1
    * krb5-plugin-kdb-ldap-1.20.1-150500.3.23.1
    * krb5-client-debuginfo-1.20.1-150500.3.23.1
    * krb5-server-debuginfo-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-pkinit-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-otp-1.20.1-150500.3.23.1
    * krb5-client-1.20.1-150500.3.23.1
    * krb5-plugin-kdb-ldap-debuginfo-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-otp-debuginfo-1.20.1-150500.3.23.1
    * krb5-1.20.1-150500.3.23.1
    * krb5-debugsource-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-pkinit-debuginfo-1.20.1-150500.3.23.1
    * krb5-debuginfo-1.20.1-150500.3.23.1
    * krb5-server-1.20.1-150500.3.23.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (x86_64)
    * krb5-32bit-debuginfo-1.20.1-150500.3.23.1
    * krb5-32bit-1.20.1-150500.3.23.1
  * openSUSE Leap 15.5 (aarch64 i586 ppc64le s390x x86_64)
    * krb5-client-1.20.1-150500.3.23.1
    * krb5-plugin-kdb-ldap-debuginfo-1.20.1-150500.3.23.1
    * krb5-plugin-kdb-ldap-1.20.1-150500.3.23.1
    * krb5-server-debuginfo-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-otp-1.20.1-150500.3.23.1
    * krb5-mini-debugsource-1.20.1-150500.3.23.1
    * krb5-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-pkinit-debuginfo-1.20.1-150500.3.23.1
    * krb5-debuginfo-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-pkinit-1.20.1-150500.3.23.1
    * krb5-client-debuginfo-1.20.1-150500.3.23.1
    * krb5-mini-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-otp-debuginfo-1.20.1-150500.3.23.1
    * krb5-debugsource-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-spake-debuginfo-1.20.1-150500.3.23.1
    * krb5-devel-1.20.1-150500.3.23.1
    * krb5-mini-debuginfo-1.20.1-150500.3.23.1
    * krb5-mini-devel-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-spake-1.20.1-150500.3.23.1
    * krb5-server-1.20.1-150500.3.23.1
  * openSUSE Leap 15.5 (aarch64_ilp32)
    * krb5-devel-64bit-1.20.1-150500.3.23.1
    * krb5-64bit-debuginfo-1.20.1-150500.3.23.1
    * krb5-64bit-1.20.1-150500.3.23.1
  * openSUSE Leap 15.5 (x86_64)
    * krb5-devel-32bit-1.20.1-150500.3.23.1
    * krb5-32bit-debuginfo-1.20.1-150500.3.23.1
    * krb5-32bit-1.20.1-150500.3.23.1
  * SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
    * krb5-1.20.1-150500.3.23.1
    * krb5-debugsource-1.20.1-150500.3.23.1
    * krb5-debuginfo-1.20.1-150500.3.23.1
    * krb5-client-1.20.1-150500.3.23.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
    * krb5-plugin-kdb-ldap-1.20.1-150500.3.23.1
    * krb5-devel-1.20.1-150500.3.23.1
    * krb5-server-1.20.1-150500.3.23.1
    * krb5-client-debuginfo-1.20.1-150500.3.23.1
    * krb5-server-debuginfo-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-otp-1.20.1-150500.3.23.1
    * krb5-client-1.20.1-150500.3.23.1
    * krb5-plugin-kdb-ldap-debuginfo-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-otp-debuginfo-1.20.1-150500.3.23.1
    * krb5-1.20.1-150500.3.23.1
    * krb5-debugsource-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-pkinit-debuginfo-1.20.1-150500.3.23.1
    * krb5-debuginfo-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-pkinit-1.20.1-150500.3.23.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (x86_64)
    * krb5-32bit-debuginfo-1.20.1-150500.3.23.1
    * krb5-32bit-1.20.1-150500.3.23.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
    x86_64)
    * krb5-plugin-kdb-ldap-1.20.1-150500.3.23.1
    * krb5-devel-1.20.1-150500.3.23.1
    * krb5-server-1.20.1-150500.3.23.1
    * krb5-server-debuginfo-1.20.1-150500.3.23.1
    * krb5-client-debuginfo-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-otp-1.20.1-150500.3.23.1
    * krb5-client-1.20.1-150500.3.23.1
    * krb5-plugin-kdb-ldap-debuginfo-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-otp-debuginfo-1.20.1-150500.3.23.1
    * krb5-1.20.1-150500.3.23.1
    * krb5-debugsource-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-pkinit-debuginfo-1.20.1-150500.3.23.1
    * krb5-debuginfo-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-pkinit-1.20.1-150500.3.23.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (x86_64)
    * krb5-32bit-debuginfo-1.20.1-150500.3.23.1
    * krb5-32bit-1.20.1-150500.3.23.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
    x86_64)
    * krb5-plugin-kdb-ldap-1.20.1-150500.3.23.1
    * krb5-devel-1.20.1-150500.3.23.1
    * krb5-client-debuginfo-1.20.1-150500.3.23.1
    * krb5-server-debuginfo-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-pkinit-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-otp-1.20.1-150500.3.23.1
    * krb5-client-1.20.1-150500.3.23.1
    * krb5-plugin-kdb-ldap-debuginfo-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-otp-debuginfo-1.20.1-150500.3.23.1
    * krb5-1.20.1-150500.3.23.1
    * krb5-debugsource-1.20.1-150500.3.23.1
    * krb5-plugin-preauth-pkinit-debuginfo-1.20.1-150500.3.23.1
    * krb5-debuginfo-1.20.1-150500.3.23.1
    * krb5-server-1.20.1-150500.3.23.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (x86_64)
    * krb5-32bit-debuginfo-1.20.1-150500.3.23.1
    * krb5-32bit-1.20.1-150500.3.23.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-11850.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1268131

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