SUSE-SU-2026:21814-1: important: Security update for valkey

SLE-SECURITY-UPDATES null at suse.de
Wed May 27 12:32:24 UTC 2026 

# Security update for valkey

Announcement ID: SUSE-SU-2026:21814-1  
Release Date: 2026-05-18T10:10:37Z  
Rating: important  
References:

  * bsc#1258746
  * bsc#1258788
  * bsc#1264164
  * bsc#1264165
  * bsc#1264166

  
Cross-References:

  * CVE-2025-67733
  * CVE-2026-21863
  * CVE-2026-23479
  * CVE-2026-23631
  * CVE-2026-25243

  
CVSS scores:

  * CVE-2025-67733 ( SUSE ):  6.8 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
  * CVE-2025-67733 ( NVD ):  8.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
  * CVE-2025-67733 ( NVD ):  7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
  * CVE-2026-21863 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-21863 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-23479 ( SUSE ):  7.7
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/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-2026-23479 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-23479 ( NVD ):  7.7
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/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-2026-23479 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-23631 ( SUSE ):  7.7
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-23631 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-23631 ( NVD ):  6.1
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/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-2026-23631 ( NVD ):  8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
  * CVE-2026-25243 ( SUSE ):  7.7
    CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-25243 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-25243 ( NVD ):  7.7
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/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-2026-25243 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise Server 16.0
  * SUSE Linux Enterprise Server for SAP applications 16.0

  
  
An update that solves five vulnerabilities can now be installed.

## Description:

This update for valkey fixes the following issues

  * CVE-2025-67733: data tampering and denial of service via improper null
    character handling in Lua scripts (bsc#1258746).
  * CVE-2026-21863: denial of service via invalid clusterbus packet
    (bsc#1258788).
  * CVE-2026-23479: use-after-free in unblock client flow may lead to remote
    code execution (bsc#1264164).
  * CVE-2026-23631: Lua use-after-free via the master-replica synchronization
    mechanism may lead to remote code execution (bsc#1264165).
  * CVE-2026-25243: invalid memory access in RESTORE command via a specially
    crafted serialized payload may lead to remote code execution (bsc#1264166).

Changes for valkey:

  * Update to 8.0.9.

  * Update to 8.0.7:

  * Fix ltrim should not call signalModifiedKey when no elements are removed
    (#2787)

  * Fix chained replica crash when doing dual channel replication (#2983)
  * Fix used_memory_dataset underflow due to miscalculated used_memory_overhead
    (#3005)
  * Avoids crash during MODULE UNLOAD when ACL rules reference a module command
    and subcommand (#3160)
  * Fix server assert on ACL LOAD and resetchannels (#3182)
  * Fix bug causing no response flush sometimes when IO threads are busy (#3205)

## 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 Server for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-774=1

  * SUSE Linux Enterprise Server 16.0  
    zypper in -t patch SUSE-SLES-16.0-774=1

## Package List:

  * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    * valkey-devel-8.0.9-160000.1.1
    * valkey-debugsource-8.0.9-160000.1.1
    * valkey-debuginfo-8.0.9-160000.1.1
    * valkey-8.0.9-160000.1.1
  * SUSE Linux Enterprise Server for SAP applications 16.0 (noarch)
    * valkey-compat-redis-8.0.9-160000.1.1
  * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    * valkey-devel-8.0.9-160000.1.1
    * valkey-debugsource-8.0.9-160000.1.1
    * valkey-debuginfo-8.0.9-160000.1.1
    * valkey-8.0.9-160000.1.1
  * SUSE Linux Enterprise Server 16.0 (noarch)
    * valkey-compat-redis-8.0.9-160000.1.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-67733.html
  * https://www.suse.com/security/cve/CVE-2026-21863.html
  * https://www.suse.com/security/cve/CVE-2026-23479.html
  * https://www.suse.com/security/cve/CVE-2026-23631.html
  * https://www.suse.com/security/cve/CVE-2026-25243.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1258746
  * https://bugzilla.suse.com/show_bug.cgi?id=1258788
  * https://bugzilla.suse.com/show_bug.cgi?id=1264164
  * https://bugzilla.suse.com/show_bug.cgi?id=1264165
  * https://bugzilla.suse.com/show_bug.cgi?id=1264166

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