---
cve: "CVE-2026-66373"
severity: "HIGH"
cvss: 7.5
epss: "50%"
vendor: "Redis"
kev: false
exploited: false
published: "2026-07-25 01:16:26"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-14T05:22:40+02:00"
---

# CVE-2026-66373

> 7.5 HIGH · 🧪 PoC

## Beschreibung

Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE payload where the same NACK (pending entry) is referenced by more than one consumer, because deleting both consumers via XGROUP DELCONSUMER leads to a double free. NOTE: this issue exists because of an incomplete fix for CVE-2026-25243.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 5a693aaed0842c4eef21c706b79fa49938ca9f6c (Commit)

## Referenzen

- <https://github.com/redis/redis/pull/15081>
- <https://github.com/redis/redis/compare/8.6.4...8.8.0>
- <https://x.com/Fried_rice/status/2080059356322918777>
- <https://github.com/berabuddies/redis-poc>
- <https://news.ycombinator.com/item?id=49024938>
- <https://lists.debian.org/debian-lts-announce/2026/08/msg00012.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-66373) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_