Bug 2466828 (CVE-2026-25243)

Summary: CVE-2026-25243 redis: RESTORE invalid memory access may allow remote code execution
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in Redis. An authenticated attacker with permission to execute the RESTORE command can send a crafted serialized payload that may lead to an invalid memory access due to an improper validation of the serialized values. This flaw can cause the server to crash and may allow arbitrary code execution.
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2480506, 2480507    
Bug Blocks:    

Description OSIDB Bzimport 2026-05-05 18:01:35 UTC
Redis is an in-memory data structure store. In versions of redis-server up to 8.6.3, the RESTORE command does not properly validate serialized values. An authenticated attacker with permission to execute RESTORE can supply a crafted serialized payload that triggers invalid memory access and may lead to remote code execution. A workaround is to restrict access to the RESTORE command with ACL rules. This is patched in version 8.6.3.

Comment 3 errata-xmlrpc 2026-06-04 13:01:10 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:23229 https://access.redhat.com/errata/RHSA-2026:23229

Comment 4 errata-xmlrpc 2026-06-11 09:51:22 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:25216 https://access.redhat.com/errata/RHSA-2026:25216

Comment 5 errata-xmlrpc 2026-06-11 11:24:50 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:25219 https://access.redhat.com/errata/RHSA-2026:25219

Comment 6 errata-xmlrpc 2026-06-15 10:00:59 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:25925 https://access.redhat.com/errata/RHSA-2026:25925

Comment 7 errata-xmlrpc 2026-06-15 15:16:05 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:26008 https://access.redhat.com/errata/RHSA-2026:26008

Comment 8 errata-xmlrpc 2026-06-16 12:03:07 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:26233 https://access.redhat.com/errata/RHSA-2026:26233

Comment 9 errata-xmlrpc 2026-06-16 13:26:39 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.6 Extended Update Support

Via RHSA-2026:26306 https://access.redhat.com/errata/RHSA-2026:26306

Comment 10 errata-xmlrpc 2026-06-17 10:36:06 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:26540 https://access.redhat.com/errata/RHSA-2026:26540

Comment 11 errata-xmlrpc 2026-06-22 02:24:40 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:27716 https://access.redhat.com/errata/RHSA-2026:27716

Comment 12 errata-xmlrpc 2026-06-22 06:22:55 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:27787 https://access.redhat.com/errata/RHSA-2026:27787

Comment 13 errata-xmlrpc 2026-06-23 07:21:09 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:28139 https://access.redhat.com/errata/RHSA-2026:28139

Comment 14 errata-xmlrpc 2026-06-23 09:04:32 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions

Via RHSA-2026:28142 https://access.redhat.com/errata/RHSA-2026:28142

Comment 15 errata-xmlrpc 2026-06-25 10:29:14 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On

Via RHSA-2026:29817 https://access.redhat.com/errata/RHSA-2026:29817

Comment 16 errata-xmlrpc 2026-06-30 06:58:24 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:33427 https://access.redhat.com/errata/RHSA-2026:33427