Bug 2466780 (CVE-2026-23479) - CVE-2026-23479 redis: use-after-free in unblock client flow may allow remote code execution
Summary: CVE-2026-23479 redis: use-after-free in unblock client flow may allow remote ...
Keywords:
Status: NEW
Alias: CVE-2026-23479
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2477967 2477968
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-05 17:02 UTC by OSIDB Bzimport
Modified: 2026-06-17 10:36 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:25216 0 None None None 2026-06-11 09:51:21 UTC
Red Hat Product Errata RHSA-2026:25219 0 None None None 2026-06-11 11:24:48 UTC
Red Hat Product Errata RHSA-2026:25925 0 None None None 2026-06-15 10:00:59 UTC
Red Hat Product Errata RHSA-2026:26306 0 None None None 2026-06-16 13:26:37 UTC
Red Hat Product Errata RHSA-2026:26540 0 None None None 2026-06-17 10:36:06 UTC

Description OSIDB Bzimport 2026-05-05 17:02:17 UTC 
Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flow, an authenticated attacker can trigger a use-after-free that may lead to remote code execution. This has been patched in version 8.6.3.
Comment 3 errata-xmlrpc 2026-06-11 09:51:19 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 4 errata-xmlrpc 2026-06-11 11:24:47 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 5 errata-xmlrpc 2026-06-15 10:00:58 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 6 errata-xmlrpc 2026-06-16 13:26:37 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 7 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
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