CVE-2026-23479

redis: Redis is an in-memory data structure store

CVE-2026-23479 is fixed in 8 products on 1 platform, first by RHSA-2026:26540, released May 5, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0261
85th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
redis · Debian 13.5 (trixie) 5:8.0.2-3+deb13u3 DEBIAN-CVE-2026-23479 May 5, 2026
redis · Debian 14 5:8.0.6-3 DEBIAN-CVE-2026-23479 May 5, 2026
redis · RHEL 9 0:7.2.14-1.module+el9.8.0+24327+41ceb644 RHSA-2026:25219 Jun 24, 2026
redis · almalinux 9 7.2.14-1.module_el9.8.0+258+b8f945d3 ALSA-2026:25219 Jun 11, 2026
redis · ol 9 0:7.2.14-1.0.1.module+el9.8.0+90920+b17784e3 ELSA-2026-25219 Jun 23, 2026
redis · opensuse-leap 16.0 8.10.1-bp160.1.1 OPENSUSE-SU-2026:21612-1 Aug 20, 2026
redis · rocky 9 0:7.2.14-1.module+el9.8.0+40207+e2014501 RLSA-2026:25219 Jun 13, 2026
redis-devel · RHEL 9 0:7.2.14-1.module+el9.8.0+24327+41ceb644 RHSA-2026:25219 Jun 24, 2026
redis-devel · almalinux 9 7.2.14-1.module_el9.8.0+258+b8f945d3 ALSA-2026:25219 Jun 11, 2026
redis-devel · ol 9 0:7.2.14-1.0.1.module+el9.8.0+90920+b17784e3 ELSA-2026-25219 Jun 23, 2026
redis-doc · RHEL 9 0:7.2.14-1.module+el9.8.0+24327+41ceb644 RHSA-2026:25219 Jun 24, 2026
redis-doc · almalinux 9 7.2.14-1.module_el9.8.0+258+b8f945d3 ALSA-2026:25219 Jun 11, 2026
redis-doc · ol 9 0:7.2.14-1.0.1.module+el9.8.0+90920+b17784e3 ELSA-2026-25219 Jun 23, 2026
redis-modules · opensuse-leap 16.0 8.10.1-bp160.1.1 OPENSUSE-SU-2026:21612-1 Aug 20, 2026
valkey · Debian 13.5 (trixie) 8.1.1+dfsg1-3+deb13u3 DEBIAN-CVE-2026-23479 May 5, 2026
valkey · Debian 14 9.1.1-1 DEBIAN-CVE-2026-23479 May 5, 2026
valkey · RHEL 10 8.0.9-1.el10_0 RHSA-2026:26540 May 5, 2026
valkey · RHEL 9 0:8.0.9-1.el9_8 RHSA-2026:25925 Jun 24, 2026
valkey · almalinux 10 8.0.9-1.el10_2 ALSA-2026:25216 Jun 11, 2026
valkey · almalinux 9 8.0.9-1.el9_8 ALSA-2026:25925 Jun 15, 2026
valkey · amzn 2023 9.0.4-1.amzn2023.0.1 ALAS2023-2026-1748 May 25, 2026
valkey · ol 10 0:8.0.9-1.el10_2 ELSA-2026-25216 Jul 16, 2026
valkey · ol 9 0:8.0.9-1.el9_8 ELSA-2026-25925 Jun 24, 2026
valkey · rocky 10 0:8.0.9-1.el10_2 RLSA-2026:25216 Jun 13, 2026
valkey · rocky 9 0:8.0.9-1.el9_8 RLSA-2026:25925 Jun 17, 2026
valkey-debuginfo · amzn 2023 9.0.4-1.amzn2023.0.1 ALAS2023-2026-1748 May 25, 2026
valkey-debugsource · amzn 2023 9.0.4-1.amzn2023.0.1 ALAS2023-2026-1748 May 25, 2026
valkey-devel · RHEL 9 0:8.0.9-1.el9_8 RHSA-2026:25925 Jun 24, 2026
valkey-devel · almalinux 10 8.0.9-1.el10_2 ALSA-2026:25216 Jun 11, 2026
valkey-devel · almalinux 9 8.0.9-1.el9_8 ALSA-2026:25925 Jun 15, 2026
valkey-devel · amzn 2023 9.0.4-1.amzn2023.0.1 ALAS2023-2026-1748 May 25, 2026
valkey-devel · ol 10 0:8.0.9-1.el10_2 ELSA-2026-25216 Jul 16, 2026
valkey-devel · ol 9 0:8.0.9-1.el9_8 ELSA-2026-25925 Jun 24, 2026

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