---
cve: "CVE-2026-23479"
severity: "HIGH"
cvss: 7.7
epss: "1.3%"
vendor: "Redis"
kev: false
exploited: false
published: "2026-05-05 17:17:02"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-15T08:44:31+02:00"
---

# CVE-2026-23479

> 7.7 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- bd3b38d41070b478c58bc8b72d2af89cbccd1a40 (Commit)

## Referenzen

- <https://github.com/redis/redis/security/advisories/GHSA-93m2-935m-8rj3>
- <https://github.com/redis/redis/releases/tag/8.6.3>
- <https://access.redhat.com/errata/RHSA-2026:14316>
- <https://access.redhat.com/errata/RHSA-2026:25216>
- <https://access.redhat.com/errata/RHSA-2026:25219>
- <https://access.redhat.com/errata/RHSA-2026:25925>
- <https://access.redhat.com/errata/RHSA-2026:26306>
- <https://access.redhat.com/errata/RHSA-2026:26540>
- <https://access.redhat.com/errata/RHSA-2026:7662>
- <https://access.redhat.com/security/cve/CVE-2026-23479>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2466780>
- <https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23479.json>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-23479) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_