Detections
Analytics

CVE-2026-23479

high

Description

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.

References

https://thehackernews.com/2026/06/autonomous-ai-tool-finds-2-year-old-rce.html

https://redis.io/blog/security-advisory-cve202623479-cve202625243-cve-2026-25588-cve202625589-cve-2026-23631/

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23479.json

https://github.com/redis/redis/security/advisories/GHSA-93m2-935m-8rj3

https://github.com/redis/redis/releases/tag/8.6.3

https://bugzilla.redhat.com/show_bug.cgi?id=2466780

https://access.redhat.com/security/cve/CVE-2026-23479

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

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

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

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

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

Details

Source: Mitre, NVD

Published: 2026-05-05

Updated: 2026-06-30

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 7.7

Vector: 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

Severity: High

EPSS

EPSS: 0.00104